Should I buy 2001 used Prius with re-built battery?

I'm very close to buying a 2001 Prius with 97k miles on it in California for $7200. The dealer told us he just installed a re-built battery. We are planning to take the car to a Toyota dealership for a pre-buy inspection before we sign the papers but wanted to get people's assessment if buying a used Prius with a re-built battery seems like a solid investment.

We're hoping to drive this car for at least a couple of years and plan to use it mostly for commuting - somewhere in the 10k/year range.

It looks like several folks have had success with re-built batteries... just wanted to get some feedback before we sink a few thousand dollars in this. Any thoughts?

 

Should also mention that this car has a clean title on CarFax but we did a little googling and saw that it was sold at a salvage auction several months ago for around $1k. We are guessing that it was a trade-in with a failed battery. The dealership that we are considering purchase from specializes in Priuses and has about 20 or so on the lot, each with re-built batteries.