I just bought a beat to death super sportster 40 arf and turned it into a conventional model. Nearly every part of this plane was broken and the covering looked like the cat was using it for a scratching post. I won it in an auction for $6. I stripped the covering, threw away anything plastic, and built it up from there. The plastic turtledeck got replaced with stringers and sheeting, balsa wingtips, new landing gear blocks, new canopy (from one I had laying around from another model) and an all new tail section. The old fin looked like a banana. When the smoke cleared I had a really nice flying plane. It's rock solid, goes where you put it, and has no bad habits.
Finish yours up. It is well worth the effort.
carl