bipeflyr:

Get a real "Tin" can, the tin plated steel kind, cut doubler plates to span the break. Secure them with small screw and nuts, with a thin layer of epoxy between the doublers and the original aluminum.

Getting the broken strut out is more bother. Wrap tinfoil around the wooden part of the plane to keep from burning it, use a torch to heat the strut (this softens the epoxy) and pull it out. It's a pain, reinforcement is much easier.

Bill.