Also given the lack of honesty of the seller I would be suspicious of the replaced transmission. Probably something cobbled together that could give you more problems down the road. Since the frame and deck were painted it might be a good idea to look those over carefully for damage as well. Maybe a good idea to pay a repair shop to look at what you have and what it might cost in total repairs.
The dishonesty of people always amazes me. How much easier life would be if people could just be honest and kind to one another.
Scag Tiger Cat 48-inch deck, Kawasaki motor
Lawnboy 10227 2T push mower
Stihl BG86 handheld blower
Stihl BR550 backpack blower
Stihl KM110R kombi system with lots of attachments
Stihl HS45 hedge trimmer 24-inch blades
Echo SRM210 trimmer