[MarkofSJC]

Question for the collective wisdom of this forum.

Strongly looking at a 2009, which seems to have been proactively maintained (race circuit) but not improved.  The coach is 152,000 miles and has had things like:

• Radiator Replaced
  
• Both main air compressors (only last two years?)
  
• Batteries
  
• Tires
  
• Alternator
  
• Generator with 3,662 hours on it
  

It's been serviced by Newell, and he'll service it again prior to sale.  My question is what sort of components would you earmark for close inspection at that type of mileage?

• How long would suspension airbags last?
  
• What's a typical interval on brakes on these things?
  
• The AC systems have been worked hard - would it be typical for one (or 4) to need replacement?
  
• I know there are a couple of picture windows that need replacing.
  
• It's running a C-15 with an Alison transmission
  

Any insights would be deeply appreciated!!!