Yeah, occasionally there is no way to get around it, ya get burned every once in a while in this hobby.
However, the good news is that if you could convert it back to a buggy while keeping the extended chassis. The handling would be back and it would handle jumps even better than the buggy would have in the first place. The major weakness to the conversion kits is the short buggy arms with hub extenders, thats what really messes with the handling.
I'm building a 8th scale Trophy truck out of spare Jammin buggy. Its just a 8th scale buggy using the extended truggy chassis, cvd's and braces while keeping the buggy arms. Looks like a scale version of the real life trophy trucks which I love alot. Axial is actually coming out with a 8th scale trophy truck.
So it would be good for that as well. :)