Need a temporary motor and good 340 block

The shop wants $600-700 for that and the block is marginally usable already(corrosion).

That is for all the lifter bores, my block was the same way and I had just 2 lifter bores done for that cylinder, was like $200-$250, I forgot but it was in the $200 range, $220 something is coming to my head, maybe that what it was ?