Convertible Top Woes

[Strawfordt]

Getting really bashed here.

I bought my 98 with a virtually new top on it this summer. I noticed a defect on the closed position where the top doesn't fit behind the plastic shield that is around the window. The guy that installed it for the original owner promised to replace the top for me for free. I know...nothing is free!

Long story short.
The guy has found problem after problem to caused me to spend $$$. I have bought a new rod with the plastic socket, a new ball for the frame and the rubbers. Now the guy tells me that he has found that the threads for the ball are stripped out of the frame. He wants to remove the frame and weld and re-tap the hole. I think a double threaded insert would be better than welding.

Any suggestions. I've already caught the guy overcharging me for the parts i needed now he wants to really get in there!!!! Doubt I can trust him

Troubled in Windsor.