Well.......kinda hard to say exactly....I'm not counting.
If you wanted to do this entirely from scratch , you are probably looking at a cost of at least 5000$ , and thats not including the several thousand hours of labor , and not including the computer to go in it.
I actually had a bunch of the stuff already tho , and have been helped out by several people , so my cost to date is probably 3000$ to date.
I'm not sure if I'll get an update in today or not.....
24+SB cores , 7x Asus Strix 1070's ,storage, memory n stuff.Dual 4k monitor video .