It looks quite nice! I had a 4905 that was a great example of the problems with that line of coach.
If this bus is in good condition, they are a great bus. Here is a list of things to look for.
Rust on the skins around the all windows, in particular the drivers side window at the drivers seat. If you see signs of repairs, really check the interior of the electrical panel below that window right next to the drivers left leg. If the window spent time leaking, the wiring and floor in there can be a mess.
Did this coach have the bogie axle in the rearmost bay? Some did, some did not. If it did, there will be 2 BIG sections of frame hanging from the bulkheads.
How do the wood floors look from the inside of the bays? Some of the torsion bars for the bay doors would pull the wood down and out of shape.
Where is the muffler on this coach? Some were in the engine compartment between the fan and the engine, others were under the floor , in the center of the coach, forward of the engine. When that muffler goes bad, it can catch the floor on fire. That's how I got my MCI.
Look at the bushings in the radius rods through the wheel wells for excessive cracking, or being shoved more than about a quarter inch.
Look at the airbags for cracking.
Look for signs of leaks around the skylights in the "hump".
If you are planning on full timing, the original insulation in the walls will be poor for cold weather (i.e. north of the mason dixon line). Get some pictures of the electrical and good details about the inverter and ask questions once you know what is there. Again for full timing, there is a lot we can tell you about what is in the bus. The 3500 watt genset will run one, maybe 2 roof airs but that may be stretching things a little. Others will chime in there. Again, the cooling power if you can only run 1 roof air with the original insulation may be a problem if you are full timing.
It looks like this bus has the original windows, which would mean no screens to keep the bugs out and you want to be able to have the windows open. For full timing, you would want aftermarket windows with screens.
I'd be tempted to say that this is a GREAT starter bus for camping, but it might not be ready for full timing without some significant changes.
Please do not think that I am "ripping apart" this coach, but I would like to make sure that someone who is serving our country is well served by us. Thank you!