Careful with the size
Hey, that sounds like a really great deal, but watch the size. I'm 6' 2"ish and ride an 18in frame and it is the perfect size. I also have a 20.5" Rocky Mountain squishy bike that is a 26" wheel. So what I'm saying is, is that with the 29er I ride a smaller frame. The the 29er wheelbase compensates for the smaller frame. The smaller frame keeps the bike nimble and quick with the big wheels.
I would highly recommend you ride it first.
My preference is a smaller frame if its a 29er. The "large" may feel big to you.