I am looking at buying a ued walker mower. I think it is a 1989 model. It has a 48" deck. It had a 11 hp B&S on it , but it blew the motor. I can buy it for $700.00 , but tuhe replacement motor that the dealer offers is $1600.00 plus expence of additional mounting hardware. I have been trying to find other options , briggs does not make a replacement motor for that engine. I would even settle for a rebuildable used one. If any one could help that would be great.