This is what he said in his defense:

Hello Sammy,
Sorry for the mishap on the lear, As I said, I wasn't going to takeoff on an iffy engine, but with the gear hitting a pot hole and breaking it went up in the air and full throttle runs confirmed that it didn't have enough power to go.
Anyhow good thing it is within reason to fix. I feel really bad I was on the sticks, I can do either of the following to help with the fix
If you don't want the electric plane, I can Offer you $25 cash.
OR
If you do want to buy the electric plane, I can take off $40 and you can have it for $110.
Don't take it on heart, **** like this happens in this hobby.
Take care

At this point i want to find plans and start fixing this plane, i don't want this thread to turn into bashing thread but just wanted to let you all know how some are, i'm not going to mention who it is at this point and i hope to resolve it peacefully.

After his lame offer, i have asked him to get me a used OS 50, OS55 FX or Webra 60 as fair compensation since he is local fellow modeler. This way once i rebuilt it, i would have appropriate engine for it.