I found this engine on ebay today. Total price shipped to me is $85.00
5hp 5 hp briggs engine 5hp flat head - eBay (item 230306670286 end time Nov-12-08 13:22:36 PST)
5hp 5 hp briggs engine 5hp flat head - eBay (item 230306670286 end time Nov-12-08 13:22:36 PST)