You could spend some more time looking for the best trailer for your needs or just get the Keystone and enjoy some camping. No fault in either choice, IMO.
Maintenance is key and the newer trailers will have some issues that need fixing. If you decide to have that done under warranty or DIY, it's a similar choice, no foul.
If you plan on a lot of primitive camping, the spring shackle upgrade is a good one. Also, water and waste tank securement should be addressed. Too many reports of half full water tanks pulling out of a bad support system to be ignored. If I bought a new trailer, the hubs would be disassembled and bearings repacked, brakes adjusted before it hit the road. Again, too many bad reports.
A generator will allow for power when off-grid but some of us have found that solar panels, more batteries, and an inverter keeps almost all of the creature comforts running without noise or fussing with gas and the generator.
My Starcraft had developed leaks before I owned it but after a restoration it still survives. It is 45 years old, this year.