PCIe and CPU Selection.

[Shiruxriu]

I'm intending to do my some more of my own research and the build below is just an example for what I actually have planned: 

Spoiler

PCPartPicker part list: https://pcpartpicker.com/list/4wpZ3b
Price breakdown by merchant: https://pcpartpicker.com/list/4wpZ3b/by_merchant/

CPU: Intel - Core i9-9900K 3.6 GHz 8-Core Processor  ($577.00 @ Amazon) 
CPU Cooler: NZXT - Kraken X62 Rev 2 98.17 CFM Liquid CPU Cooler  ($144.24 @ OutletPC) 
Motherboard: Gigabyte - Z390 AORUS XTREME EATX LGA1151 Motherboard 
Memory: G.Skill - Trident Z RGB 32 GB (2 x 16 GB) DDR4-3466 Memory  ($402.80 @ Newegg) 
Storage: Samsung - 970 Evo 2 TB M.2-2280 Solid State Drive  ($544.33 @ Amazon) 
Storage: Samsung - 970 Evo 2 TB M.2-2280 Solid State Drive  ($544.33 @ Amazon) 
Storage: Samsung - 860 Evo 4 TB 2.5" Solid State Drive  ($759.90 @ Amazon) 
Storage: Seagate - BarraCuda Pro 10 TB 3.5" 7200RPM Internal Hard Drive  ($375.48 @ OutletPC) 
Storage: Seagate - BarraCuda Pro 10 TB 3.5" 7200RPM Internal Hard Drive  ($375.48 @ OutletPC) 
Case: Lian-Li - PC-O11 Dynamic (Black) ATX Full Tower Case  (Purchased For $143.32) 
Power Supply: SeaSonic - PRIME Ultra Titanium 1000 W 80+ Titanium Certified Fully-Modular ATX Power Supply  ($282.50 @ B&H) 
Operating System: Microsoft - Windows 10 Pro Full - USB 32/64-bit  (Purchased For $220.19) 
Case Fan: be quiet! - SilentWings 3 PWM High-Speed 77.57 CFM 140mm Fan  ($24.92 @ Amazon) 
Case Fan: be quiet! - SilentWings 3 PWM High-Speed 77.57 CFM 140mm Fan  ($24.92 @ Amazon) 
Case Fan: be quiet! - SilentWings 3 PWM High-Speed 73.33 CFM 120mm Fan  ($22.85 @ SuperBiiz) 
Case Fan: be quiet! - SilentWings 3 PWM High-Speed 73.33 CFM 120mm Fan  ($22.85 @ SuperBiiz) 
Case Fan: be quiet! - SilentWings 3 PWM High-Speed 73.33 CFM 120mm Fan  ($22.85 @ SuperBiiz) 
Case Fan: be quiet! - SilentWings 3 PWM High-Speed 73.33 CFM 120mm Fan  ($22.85 @ SuperBiiz) 
Case Fan: be quiet! - SilentWings 3 PWM High-Speed 73.33 CFM 120mm Fan  ($22.85 @ SuperBiiz) 
Case Fan: be quiet! - SilentWings 3 PWM High-Speed 73.33 CFM 120mm Fan  ($22.85 @ SuperBiiz) 
Monitor: Asus - MG279Q 27.0" 2560x1440 144 Hz Monitor  ($576.64 @ Amazon) 
Monitor: Asus - PG279Q ROG Swift 27.0" 2560x1440 165 Hz Monitor  (Purchased For $741.56) 
Keyboard: Corsair - K95 RGB PLATINUM Wired Gaming Keyboard  (Purchased For $165.14) 
Mouse: Corsair - GLAIVE RGB Aluminum Wired Optical Mouse  (Purchased For $56.65) 
Other: Elgato Game Capture HD60 Pro, stream and record in 1080p60, superior low latency technology, H.264 hardware encoding, PCIe  ($185.02 @ Amazon) 
Other: EVGA PowerLink, Revolutionized Cable Management! 600-PL-2816-LR  ($17.40 @ Amazon) 
Other: Silverstone Tek ARM One Articulating Single Arm Computer Monitor Desk Mount/Mounting Bracket (ARM11BC)  (Purchased For $80.35) 
Other: Silverstone Tek ARM One Articulating Single Arm Computer Monitor Desk Mount/Mounting Bracket (ARM11BC)  ($129.55 @ Amazon) 
Other: Blue Microphones Yeti Pro USB Condenser Microphone, Multipattern (BLUE-YETIPRO) with Pop Shield Universal Pop Filter Microphone Wind Screen with Mic Stand Clip  (Purchased For $177.55) 
Other: Elgato Stream Deck - Live Content Creation Controller  ($156.92 @ Amazon) 
Other: CableMod ModFlex SE-Series Basic Cable Comb Kit - Transparent  ($12.95 @ Amazon) 
Other: CableMod ModFlex SE-Series Basic Cable Comb Kit - Transparent  ($12.95 @ Amazon) 
Other: CableMod ModFlex SE-Series Basic Cable Comb Kit - Transparent  ($12.95 @ Amazon) 
Other: CableMod ModFlex SE-Series Basic Cable Comb Kit - Transparent  ($12.95 @ Amazon) 
Other: CableMod SE-Series KM3 & XP2 Cable Kit (Black / Orange)  ($97.87 @ Amazon) 
Other: Blue Yeticaster Professional Broadcast Bundle with Yeti USB Microphone, Radius III Shockmount and Compass Boom Arm  ($217.72 @ Amazon) 
Other: EVGA 2080 Ti XC Gaming ($1431.29)
Other: AMD Radeon 7 ($770.69)
Total: $9412.66
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-01-29 14:15 EST-0500

So with all of that data in mind, yes I intend to use both GPUs simultaneously along with the capture card on occasion for console gaming captures. That being said, should I be concerned with this plan of action. Will I be using too many PCIe Lanes for standard Prosumer builds such as an Intel 9900k or Ryzen 3rd Gen/2700x? 

If so would an HEDT Build be better for me i.e. Threadripper 2 or Intel HEDT 9800X?

 

I just need to know the PCIe Consequences of my selections, not recommendations for specific CPUs.

 

[Shiruxriu]

I've decided in light of debate and pricing, HEDT Will be the road I travel down. (If the mods want to lock this from replies, please do.)