I have a 73 cb750k that I picked up with bad wheels, tires and no front brake. I found a deal and picked up the parts from a 77 cb750a and don't have them yet (not local). Just wondering if I'll run into any issues and if they use the same components or if I need to buy parts for a 77a when I upgrade? Also, what aftermarket options are there? From the pictures I've seen, they need a refresher and I have a habit of upgrading rather than fixing.