"It is more therapy than anything"

Bingo!! I practice this hobby for myself and friends of mine, not for monetary gain, so I can stop and start without notice and to suit myself.

The cheapest overbore rebuild would be with cast pistons, cast rings, rod and main bearings, oil pump and timing chain set. A little more dough will rebuild the heads and replace the cam and lifters.

Good, cheap therapy also dictates that the block should be ground and sanded inside and out, removing all sharp edges and casting flash. It can then be primed and painted the color of your choice outside and painted internally with General Electric Glyptol to prevent any hidden sand pockets from coming loose and falling into the lube system. Overkill? Of course it is, but it's also good therapy