I have the Original Grace Frame. They no longer make parts for it haven't for a long time but the frame has held up for 20+ years now and I bought it used too. My machine recently stopped working and I have to find a new place to have it serviced because my service man recently dies. So I am on the search.
The grace frames are all made to last. My sister also has one and loves it. For a first frame is is great. Even if you buy used the service department is great. Th ey have always answered any questions I had and been very helpful.