Chris,
Can you measure the length and diameter of the current axle on the CB1 forks? If you don't have an axle, then what is the diameter of the clamp, what is the distance between the inside surfaces of the fork, and what is the thickness of the clamps on the fork?
This might be as easy as a swap in, but I think you will likely require new wheel bearings and maybe a new axle. Don't worry, it is pretty easy, but you have to measure everything first.
Camelman