Do Beaufort NC not Morehead, great waterfront town with lots of places to eat and shop. Short trip to Oriental, Oriental Inn and Marina is pretty cool, swimming pool and tiki bar, very laid back.
I am a broker. I would say NO. You never know what can go wrong. Boat is probably in great shape, but things break. Who's responsible? Try to come up with an agreeable amount to hold in escrow. Close the sale, let them do samples when they are ready. Samples come back good you get the amount...
I am not sure what the VG4 system is exactly. Does it not have a seperate pump that can be replaced. Try these people, they are awesome. https://www.environmentalmarine.com/
It amazes me how much time is spent on rebuilding these pumps. Parts are almost half the cost of a new pump. Frustration is equal to the other half. A new pump, 2 wires and 2 hoses, done.