Doesn't appear to be that many items on the work order to indicate the shop did an actual rebuild, likely only paid the shop to inspect and replace what was needed. My concern would be the quality of work performed by the shop, they missed the domed pistons and '92(if they were told what it was going into), didn't take a lot of pride in how they cleaned the pistons, what else did they do a half assed job on?
For what they are asking, if you do the assembly yourself, it should cost you about the same for all new parts, machine work, alignment of pistons on the crankshaft, clean/inspect the block, etc.
