Older Prochem Blazer?

Hello all,
I am new to this Forum, which I think is great by the way, and I have a question for all you savvy equipment purchasers.  Let me give you the breakdown first.  There is a older ProChem Blazer with 998 hours on a 16hp v B&S motor.  Pump and exchanger were recently replaced.  Overall very good running condition and appearance, obviously well maintained.  Comes with a nicer hose reel, hoses, and an 80 gallon waist.  It is currently in a very old van with very high millage, but also well maintained and has new rear tires and runs great.  I don't want the van and intend on selling it if i buy the set.  The van is only worth $800-$1000.  The asking price for everything is $4000.  What do you think.  Deal or no deal.

I decided to pass on it after offering 3500 and they declined.  It was going to be a backup anyway.  The problem was that is was built in 95 and only had 1000 hours?  Seems a bit odd to me to have less than 100 hours a year in 13 years.  I have bought old equipment with low hours before and there is either hour fraud or the machine has dry rotted and will be a continuing source of problems.  If anybody wants it I can provide their contact info.