moggers

people are fascinated with flashy lights

To add, this just shows how high end extremely customised rigs of the past really are a money pit and such a difficult thing to resell.
 
If he had a 5820k on a simple air cooler/aio with one 1080 and 32gb ram, coupled with a ready to go win 10 install on a fresh 512gb ssd, he could probably sell that machine all day long for $650 (maybe even 800 if he rgb blinged it up) it and it’d have cost maybe $1700 new around that time for not *that* much less performance. 
 
 

To add, this just shows how high end extremely customised rigs of the past really are a money pit and such a difficult thing to resell.
 
If he had a 5820k on a simple air cooler/aio with one 1080 and 32gb ram, coupled with a ready to go win 10 install on a fresh 512gb ssd, he could probably sell that machine all day long for $650 (maybe even 800 if he rgb blinged it up) it and it’d have cost maybe $1700 new around that time for not *that* much less performance. 
 
 

What are you going to be doing with the pc?
Do you have to have watercooling?
 
My thinking is no. $1800 will buy you one hell of a pc with an up to date platform. Esp if your willing to buy some parts used.
 
Im not a watercooling expert and cant proce out how much the value of all that is. But if water cooling isnt a must i would personally pass.
 
 

i'd honestly not spend as much on a system that old. Granted the specs are still very good and the full loop is a good bonus.
However SLI is dying and 8core CPU's can be bought for $300 now.
I'd take the budget and get a 3700X, a 2080S (slower than SLI1080 but much faster in games that don't support SLI), the same 16gb ram and a nice Nvme drive. 

For that kind of money I'd just build one with up to date specs