And having fitted new barrels to a few, I would rather rebarrel most any bolt action rifle instead. It is a pain of a job.
Last one I did, though, I recontoured a 6" barrel, and shortened it so that it was just over the legal minimum. It is not apparent that the pistol has been rebarreled, turned out well.
Tradeex has some restricted Swiss Lugers. Worth looking at these.