No clue how accurate that statement is really, some will go that and some won't. Depends on each individual bus' circumstances. Stay with Cat parts, filters and it will keep going likely. If it ain't broke dn't fix it they say so if it runs smooth and shifts smooth then take a chance. I know you don't like the paint or bedguard stuff. That is not the end of the world in changing that to your liking.
As far as what else may be wrong, the chains for example, call and get an estimate from the mfg or shop of your choice.
Looking at the power steering, I would say the leak is from the hose clamp just above the pump. I check clamps at least once a month on any and every vehicle I own. Peace of mind is worth a lot to me. I sure would feel like an idiot if I lost a rad hose because I was too lazy to check them.
Diesel buses are not cars so maintenance is something you had better do on any bus or they will give you heaps of trouble. Unless your pockets are deep, count on doing the maintenance thing, a few minutes can save thousands of dollars and heartache.
Offer 4 g's and work with him. All he can do is say no. But then you find out how motivated he is to sell.
John
Thanks John!
We will reach out to them and see what they say.
On another note, we did find this one really close to us: https://sfbay.craigslist.org/pen/cto/d/1993-thomas-international-bus/6663427952.html
It is a lot but has a bunch of extras we can probably resale to recoup some cash. Emailing them too, good to have some options.
Thanks everyone! We are getting close now and have learned a ton. We will keep everyone posted on our bus situations.