This is not about the OP.
Find any block to build........pull one out of thin air.
How do you know it's not warped?
How do you know the deck is parallel to the crank?
Low end build, scat crank, cam, bearings, rings, pistons, gaskets, valve job, timing chain, oil pump........etc........
Easy $900 to $1200 in parts, not to mention time, effort, misc such as paint, plugs, wires............on and on......
And you won't pay $80 to resurface the deck?????????
But you got a ruler and a feeler gauge, right?
I don't live in the world of .0001, nor do you, so I pay someone who does.
As to the link I posted, dude screwed the pooch, for the lack of communication with the machinist.