I have a Wacker BTS 1035 72 cc Sachs engined abrasive disc steel cutting saw for sale.
Bought new in 2003 for $795.00, asking $500, has approx. 18 hours use. Somewhat mungy with steel dust, but starts first pull and has one of the best air filters in the industry for this type of cutting equipment.
If not for cash, I would consider a trade for a small, running, aged 4 stroke dual sport bike, with a few more beans than the YamaLifan. Must be street legal, and have title.