The neck is a replaced neck. Gibson is not where it supposed to be. That immediately negates it a pedigree Gibson.
If the bridge is “correct”, then a very poorly made neck with a off centered heel cut. Wry smirks on banjos are not good signs. Grimaces on banjos says a good heel cut has been made.
The traditional pot checks require more disassembling than one picture allows. For certain, it is not a Gibson. It is a Gibson clone as classified here.
The neck is not real, the pot could be a 00 style pot, but there is way to little info in this one picture to tell. Best case scenario would be a 00 pot , the hardware looks right for it except the tail piece with a fantasy neck. Maybe $1500 if it’s well made and a good player with a 00 pot. That said it could all be someone’s attempt a Gibson.
Not even a Gibson inlay pattern. Whether it is intended deception or ignorance, I would be suspicious of any claims as to parts being Gibson.
We would need photos of the pot; front, back and sides (close up), plus more photos with the resonator removed so we can see how the wood and tone ring and coord rods and underside of the flange look.
The neck goes without saying, not even remotely Gibson. The inlay looks more like an Ode D!
That actually looks like a very well crafted parts instrument.
As mentioned, would need to see more detailed photos. Especially of inside the pot.
If it’s put together well, and the price is right, might be a very nice playing and sounding instrument.
Looks like builder liked Ode type inlays to me, kinda Ode looking pattern on some of them.