Hi. I am contemplating a Scoremaster within the next few weeks. Will any non-Detonics magazines work? How important is an original box and/or mamual? Or original magazines, for that matter? I found a NIB one for around $1000 and a near new one in box (1 mag only) for $750. Any thoughts? Not being that knowledgeable, I hate to venture down the wrong path. I want to shoot it and not just put it in the safe. Thanks.

Fred