AMS racing might be able to help you with the seat cover. They have covers for the TM models, not sure what the difference is but they might be able to point you in the right direction. Clutch release lever- on the handlebar? You can get a complete perch and lever set pretty cheap. I get mine at Destination Powersports in Marionville. Brian or Amos should be able to help you there. Brian is also very good at finding parts for the older bikes. Where in southwest MO?