Hi Ray, the model info is on the silver tag on the second picture behind the motor also on that tag should be the year it was made. I would check with the seller to see if he or she could get you a nice picture of that plate and see if this have is a multi-speed. Mine says it's a Multi Max and I'm assuming that means it's a multi speed. Also I'm unable to see if the dust collector is on that one. It looks like it has the quick clamp on it already which is a huge plus in my book.
I've only had mine since New Years Eve so I'm pretty new at it. I'm sure one of the old timers (haha) can give you more info that what I've said.
Good luck
Jim