Welcome to the group. Its a little quiet for us non Bob owners especially when they are not 'new' machines. When I was searching for anything for my 310 (I think similar vintage) I did run across places that seemed to sell various cab covers for mine. I was not looking for one so I did not look very close or bookmark anything. I have found that if you get the right dealer asking the right 'factory' person the right questions you can still get good info and sometimes parts. I got just got genuine NOS parts and operators manuals for my machine for $15 each. The first parts guy the dealer talked to said sorry nothing for that old of a machine. I had him ask for service to find out what kind of fluid the thing used and while the service guy was looking it up my dealer mentioned that it was too bad there was no manual, service guy said we have those in stock. Also turns out that my machine uses Dextron ATF. I changed it yesterday since thats not what it looked like was in there and it seems like things are running quieter but I did not really get much time to run it after I finished. Drain plug was stripped and stuck in so I had to 'suck' it out. 15 gallons takes a long time and I got a little machine.