Getting the drum off for current/future brake service is actually pretty easy.

My late buddy did it for his 64 b-body after destroying an axle with the puller.

He just used a BFH to drive the wheel studs out of it and then removed the drum like you would any other.

He then measured the holes in the drum and turned the swage on the new studs down in a lathe to that size to locate the drum securely.

Kevin