Too many people sink money into these long arms and then think that they will quilt for other people to help pay fot it. Hence the problems we have heard about here.
Do you have samples worked up? Do you enjoy trying new quilting patterns? Are you experienced at loading quilts and knowing how to fix problems?
Have you investigated the finance aspects and tax situation if you are serious about a real business?
If you are really serious and have thought this through, I hope you are wildly successful in your new business.