All the sears parts are high rent! That could be a tall order, I'm making my own when the time comes. The parts for em on ebay are quite high, a fuel tank brought $200 and another saw $125 I believe. I am finally getting a tank but need a sissy bar and clutch cover. I'll probably make both as mine is gonna be a rider as well. That and I'm cheap! Here's mine as purchased. It ran and rode but was a mess.
Good luck on your quest, I hope you find one.:thumbsup: