did a $4500 408 carb to pan, probably 7 years ago that made over 600 flywheel on motor. but it was a lot of scavenging for used parts, and all the labor and fab work was done in the garage to keep the costs down. it was a stock 1980 windsor block, a $300 eagle 4340 crank off ebay, a set of used GRP rods that were $40 but worth the gamble, and a set of 408 flat tops that we had to cut the valve reliefs in. they were used off ebay for a couple hundred. then a set of $400 closed chamber, 4v 1971 iron casting stock cleveland heads, a chet herbert solid roller, some used old headers for a couple hundred, an old ford motorsport cleveland 9.2 deck single plane intake that we had to make spacer plates and a valley cover for, had to use the tfs clevor conversion neck, drilled the front and back of the heads for coolant flow, did the normal clevor mods to the heads and block. didnt prep the deck right and still used cometics, they sealed. but we also used copper coat and that wasnt supposed to work but did. it can be done, but its a lot of work.