Bobby Hoyt
2379 Mount Hope Road
Fairfield PA 17320
ph: 717-642-6696
You need to call him first to see what he thinks. Depends on the barrel and the depth of dovetails or any screw holes if he can make a 62 out of a 54. Hopefully your barrel is 1" across the flats. He is a good and fair guy to deal with. May take a few calls as well. When he is working he doesn't get tot eh phone.
Dave