Anyone ever traded parts for work?

[iluvmy72]

I talked to a mechanic today that I was inquiring to remove a perfectly working 7.4 TBI engine from 94 suburban and take out a 5.7 from a 96 burb and put it in the 94 with some TBI conversion. I was going to pay him 300 for the one day job but instead he wants the TBI 7.4 for his 69 truck. Now part of me wants to see that 69 setup with the 454. But the other part of me is saying he's ripping me off considering the engine only has 178,000 miles. But then again he's probably gonna stroke the motor....oh man...what would you guy's choose? The motor would just sit here anyway.