Some progress!
The 735's major subassemblies in primer. Not very much sanding will be needed before I can do the gloss white.
Now how does one repair a broken trailing edge? It will need to be filed down to a sharp edge, which eliminates most filler materials. My solution is acrylic dental casting resin. Dentists use it to make temporary crowns and other things for your mouth, so it's going to cure rock hard. If you can chew on it, it'll stand up to more abuse than bondo will...
Step one: aply pieces of transparent (and difficult to photograph) packing tape to the undersurface of the wing. This will hold the resin in place. The two bottles hold the 2-part resin mixture.
Step two: apply the resin powder to the areas to be filled. It'll dry rock hard, so don't go overboard; you'll ony have to grind it down later on.
Step three: using a pipette, add drops of the liquid onto the powder, taking care not to let it splash, and allowing it to mix into the powder by capilary action. Do not use too much liquid or it won't cure properly. This stage takes a little practise to achieve. The resin should look just slightly granular when mixed properly.
Most of this resin will be ground down with a Dremel after it cures. Your workshop will sound and smell like a Dentist's office for a little while.
J