If the price is right, buy it! Sounds like it is in good condition.
I'm 6'5" and I get the back bed, ma gets the front bed. We leave them set up as beds all the time.
You should check the tires
to make sure they are good. Usually tires "time out" before they wear out. You should find out the last time they greased the wheel bearings, and if they have ever inspected them. You should be able to put your fist between the top of the tire and the trailer. That generally indicates the rubber suspension is in good shape. Inspect the frame for cracks.
You will need to wire your tow vehicle for the Scamp plug. The diagram for that is available under Document Center here, or can be Searched for. The Scamp may or may not have electric brakes
. Not a deal breaker.
If the above items are in good shape, that will get you on the road.
You should also verify the refrigerator
works in all modes (120v, 12v, and propane). This would be somewhat expensive to fix if not working. Most all other things can be repaired reasonably easily if not working, unless I'm missing something.
Sounds like a buy to me with that provenance. Funny how a few people buy a trailer and immediately discover they don't want it, so be sure your ready for small camping before you jump in.
Oh, and I'm just pulling this out of the air but a 5-6 year old one in good condition and standard options might go for $4,000-$5,000 (others might chime in on this), so anything less than that would be a very good price.