Is $1700 a good price for a Performax SuperMax 37HD drum sander that is in good shape? It's 12 years old, has a single drum, 5HP motor, 3-phase (with a 3ph to 1ph converter included). Or, with this kind of age on it, would I be better off putting my money towards a new SuperMax 37 x 2? This is going on the second floor of the building my workshop is in, so if I didn't have to take into consideration the weight of the machine I would consider a wide belt sander also.