If you haven't already, go to the Winnebago website. You can see/download the '05 sales brochure and all schematics. Then you can check if all the features (like airbags) are still in place.
We really like our '06 Aspect 23D but it has some age related quirks. The one that is a pain to fix is the outside brow over the windshield comes loose and rattles. The monster TV is outdated and if you remove it, the cavity will have to be finished. It is usable with an HD converter and DVD player
Check the following: they have either aged out or failed on our Aspect:
Tires and shocks, age and alignment problems
All detectors
Under sink water filter (Everpure) a bit pricey
Ours needed alignment, really helped handling
Leaks around the house water pump
Make sure all appiances are working!
The stock dash radio is a pain to operate
Run the generator and AC
Ask for all the manuals, its a big stack in a nice Winn valise
Cabin vents need replacement
Most of the items are under $50. Tires and appliances will be big ticket $$
Quality of hardware and cabinets is very nice and features seem well thought out. Ex. Pull out pantry, lit closet etc.
The closer for me were the Alcoa aluminum wheels!
Norm