Well, the strut broke right at the pivot point, so couldn't do the sleeve idea. I use Tenex for most of my assembly stuff, so decided to try that before going the scratch route. Put a drop on both ends and let it soften the plastic a bit, then pressed them together and held them for a few more seconds. Once I was confident it wasn't going to move, I waited a couple hours then coated the joint again. On coating the joint the Tenex dissolved the silver paint a bit and coated the joint. This morning I held my breath and flipped it over to set on its gear - success, it held! I'm not going to be moving it around much though.
I have a 1/72 B-24 (Dragon and his tail) the cat knocked off the shelf a year ago that also broke a main gear strut, and numerous other bits. I've now gotten motivated to try my luck at him - problem there is going to finding all the bits.