It's not clear to me when you will be doing this ride. You are brave to take a ride like this on an old bike that you don't know inside and out. But then the upside of a big ride on an old bike is you can always abandon it and get on a plane without losing much, if it comes to that LOL. Let's hope it doesn't. If you find yourself in the vicinity of Utah and in need of help with that old CX shoot me a PM here. I have a 1980 CX500, and although mine has not given me any trouble (knock on wood), I know a little about them and can turn a wrench.