Dont know if you would be interested or not but I have a brand new 14hp subaru powered Gravely blower I have been thinking about selling. Bought it new along with my new 460 mower this summer. Our lawns have some leaves in the fall but im not sure there is enough to warrant the money we spent on the blower. I think it was $1400. I would be willing to let it go for $1000 if you wanted to come down to maryland and pick it up. It has absolute incredible power and starts first pull every time. We haven't used it on a job. Just tested it out at home.
If you are set on the billy goat then I would spend the extra and get the self propelled.