porter-cable model 524 porta-band

[wroughtiron]

Well I finally have a porta-band on the way, a very, very old model 524 porta-band. I bought it on ebay, and it will be here in a few days. Now I have a few questions about it.

#1 How old are they, and when were they made.

#2 What kind of oil do I put in the gear box, and where can I get it.

#3 Where can I get parts for it, such as the tires.

#4 What is a fair price for one of these in reasonable condition, that works well.

Any thing about this will be very helpful, along with general advice about these.