Looks like one of these illegal Chinese instruments. The large typefont of the serial number looks a lot like the typefont used on those ones.
But that doesn't say it's a bad instrument... 800 may be a bit steep. But it might very well be a good price for a very nice bass.
They just shouldnt have put the
Gibsun logo on the headstock that's all.
It reminds me a lot of my BaCH EB2. That happens to be a monster bass
I am really deeply impressed by that bass. If that one would have been priced at 800 it would be worth every penny.