5.3L swap-opinions on possible donor

[Dustint]

Planning on swapping a 5.3 and 4L60E tranny into my 48. Looking into a 2000 Silverado that has been wrecked, front end damage and bent frame. Has the aforementioned combo and a very recent tranny rebuild with paperwork. According to the seller the frame is bent and almost touching the starter, and the starter began smoking when trying to start, so has not started since wreck but ran fine before. The only damage to components I would possibly be using is the trans cooler.
Anywho, could buy the pickup as a whole for $750. Thinking myself that's a pretty good deal. Would you guys agree or does anything sound like it may be something to stay away from?