I like the paint job. I was looking VERY seriously at the CX500 as a replacement to my old Avenger. I read where they can have head gasket problems, so I shied away from those. It is a neat look with the 90 degree config. They didn't make too many of them, though...maybe 4 years worth, and they're just as old as our vaunted DOHC bikes.
Tell your dad he's a heck of a bike mechanic, and he has my admiration. Good job!
Luke M
Used to have a 1979 CB750L, sold it as a parts bike, now riding a slightly modified 1984 VT700C. Network/Field Engineer. Central OH, USA, Earth, Sol System, Milky Way Galaxy, Universe.