The Smallest Build HELP Please

[PCDesignerRy]

So, I've recently finished the largest computer build I've ever done out of a Thermaltake WP200 computer case. It's a double computer case that is essentially so large that there is basically no way to move it solo in a way where it can be lifted and moved. I've always built big and I'm not sure why that has been my preference. Now however, I'd like to think in the direction of using my current components to build a desktop computer that would be very easy to move myself and to transport to say a LAN party if I ever decided to go to something like that. I'm hoping someone, reviewing the below hardware, can suggest to me a case I could use that could fit these parts whilst still being small as possible. Here are the parts I use currently:

CASE: Thermaltake W200
MOTHERBOARD: MSI MEG Z390 GODLIKE

PROCESSOR: i9-9900KS
COOLER: Corsair Hydro H150i CLC
GPU: Asus Strix 1080Ti
RAM: Patriot Viper 30GB DDR4-3200

SYSDRIVE: Samsung 970 Pro M.2 SSD

I'd be willing to at least consider adjusting parts as needed to create a computer that would be very easy to transport. 

As always, I appreciate any time and assistance you can afford to provide me with.

Thanks! 
 

[Quadrum]

Go with the Fractal Design Node 202. VERY compact case, and your gpu will fit with 5mm of clearance, but small, light, and quite portable as far as desktops go.

[Slottr]

I think the raijentek thetis is one of the smaller ones you can get. You're limited with the ATX board. There's a million other options in the mATX and ITX areas

[Jurrunio]

As small as possible on ATX? I thought you're talking about mITX of some sort