Raleigh Gran Sport

I truly truly love this bike. I believe it was built in the early 60s at the Carlton Shop (the wrap-around seat stay is a dead giveaway). When I bought it, she had a mix of 60s and 70s components--including the original Campy Gran Sport derailer. Recently I updated the brakes and drivetrain to make it more San Francisco-friendly. The next thing it needs is a paint-job and new wheels. I want to cold set the rear axel to 130mm so I could fit her with modern wheels, but I'm afraid I'd mess up in the process.  Sadly I haven't been able to fine a 120mm rear hub at a reasonable price.