We purchased a 2003 Tiffin 40' Bus two years ago. We are very happy with it, but hopefully you are able to do minor repairs yourself or you might be spending a lot of money paying someone else to do them. I do most of my own maintenance an keep a log of all items for future reference. I have added a Safe t plus steering system, TST tire pressure monitor, a Scan Gage to monitor engine parameters, Amp Charge to keep the chassis batteries charged. Replaced a lot of minor items in the bus.
If you are willing and able to do your own repairs you should be OK, an extended warranty is a good idea on an older coach if you are purchasing from a dealer.
Good luck, Ed
Ed & Kathleen
2003 Tiffin Allegro 40'
Jeep Liberty Tow