You sure did score! Just finding one in such great condition is amazing, and the price is just icing on the cake! I have an 830... and it's actually the third one I've owned. I went through two motors on my first one! Bought and sold a second one, and I don't even remember where I bought the one I have now. I've been sewing on these since they were new-- the early 70's. They are the BEST machines!!
This machine was the first I began FMQ on, before I even knew there was a name for FMQ. It can do it all.