Douglas M-2 Mailplane by Aurora

This is the first model out of my grandfathers old stash I've decided to tackle. Looks like everything is there (the box had been opened). The only issue I've seen so far is that one of the exhaust tips seems to have been broken. This kit can be completed in 1 of 2 variations of Western Air Express markings. I have not yet decided which way to go with it. From the box: "Pioneering the delivery of mail by air, over 50 Douglas M-2's were built. Used by many early air carriers, the rugged Mailplane is best remembered a the first aircraft flown by Western Airlines, America's 50-year old senior airline." Anyway, here are the beginning pictures out of the box: Box: Layout of parts. I'm not sure if my grandfather removed them from the sprues or the kit came like this, but there aren't any other sprue scraps in the box. As you can se, there aren't a lot of parts to this kit: Here is the exhaust tip that is broken. Can anyone give an idea on how to fix it? My first step will be to wash all the parts, then I will give everything a fresh thin coat of primer. I can't wait to start on this as it's my first aircraft ever, and I'm also looking forward to doing the rigging. Stay tuned!