I'm 99% sure that's a homemade incubator that is made with GQF parts. It should have a back up wafer thermostat but you can see it has a GQF electric thermostat in the pic.
One thing I see that I do not like is the drawers that the egg turners are in. It looks like they have a solid wooden floor. My metal GQF trays have wire floors which allows better airflow and a more even distribution of the heated air. It's not a deal breaker and you could actually cut the floors out of them and add hardware cloth (just make sure to seal the wood where you cut it).
It looks to be much shallower than an original which means will hold a lot less eggs. I would definitely buy this one over a styrofoam one any day of the week but honestly I would try to get him down to at least $200, preferably $175. You can tell him it's homemade, holds way less eggs than the original, and it has much cheaper egg turners in it.
Also I'm not sure that the GQF Water Reserve System will fit on that top shelf (it may fit sideways). The water reserve system is a MUST have....