Price seems decent. Here's my advice. You are so close to buying a model that still has warranty left in that price range that it would make sense to wait for one with a warranty so at least you are protected up front going into the deal. A 4 year old machine has already come off warranty or is about to.
I may have to rethink my choice grass isn't going to be bad but it is the driveway That is going to be an issues
I was talking to a dealership about an older model with some attachments and he said that one A 435 would be twice as much and the Cam gear had not being replaced and it had a 1000 hours too
Anything with warranty will be to small or HUGE money or both
Canadian prices quite a bit more than USA prices I am finding