-J- :
It was just for your reference and review. I didn't expect you could build it very easily. I think it could be done though.
BladeRunner :
I think that anyone could probably do the base layout with basic tools, it would just be a rougher layout.
As for the individual components that are taller than the RAM... once you got to the point where you had the base pads for the core and RAM done... you put HS compound (cheap white stuff) on the components (Just a drop off a toothpick), then put your block in place to get the positions of the components. Pull the block off and then use a center punch to mark the centers of the reliefs and drill out by hand... time consuming and not as accurate as measuring with calipers, but could work out nicely.
I'll probably use that technique to verify my positions before and after milling the reliefs so I can verify clearances.
I did have those very component reliefs marked on my drawings BTW...
