Buying in bulk, one could probably get the price down to $200 and still keep a profit, but the volume would be so low that it's probably not worth the time and effort.
I've thought about doing this, ran some math, and that's the conclusion I came to.
I suspect so, but it's pretty heavy machinery and really made for a big mast. I've shied away from it so far because it's a big investment, and it's a bit unclear how precise it is, how exactly to connnect it to a computer and so on.
My gut feel is that SatNOGS would be easier end-to-end (and probably easier to repair and upgrade if necessary).
I really wish someone would sell a kit or preassembled tracker for us lazy people.