12/09/09: Found an engine in KC, MO on e-Bay today. Starting bid is $399.00 and there is a $749.00 Buy It Now price. Shipping is guesstimated at $250.00 to $350.00 with a $60.00 pallet fee. I calculated that it would cost me $250.00, or so, and twenty-four hours for me and someone to go get it in Fifi. If the bidding goes over $590.00 ($690.00 if shipping is only $250.00) I begin to break even on the road trip. Under $590.00 it is still cheaper to pay shipping.
12/10/09: Received an e-mail from the seller confirming that shipping to Fort Worth will be $250.00 plus $60.00 pallet fee. Was also assured that the later (TR-4) engine would fit the earlier (TR-3) chassis. Was also told that the later engine is 200cc larger with a better intake port design.