I still dont think a windstar is a good idea, the 3.8L is nutorious for head gaskets, I dont think any of the GM older minivans are good either, my sister-in-law's parents have a chevy venture, at 40K miles the A/C system catastrophically failed. Later the intake manifold gaskets fell apart, and after that the trans failed at about 102K, differential exploded. On top of that at only 105K it drives like a pile of junk, has all kinds of klunks and bangs, and the rotors are so warped that you bang your head on the dash the first time you use the brakes, and rotors have less than 10K miles on them.
its the same story for my mom's friend's venture, trans failed at about 100K, A/C quit.
The only minivan I have driven that was tolerable would be the Chrysler town and country, it was... fair, however the trans had issues on it, but the motor was pretty sound.
Like I said, look into an escape, occasionally i see them go with fairly good mileage for around 5K. Of course, this would be a first year escape though.
http://cgi.ebay.com/ebaymotors/2001...206597663QQcmdZViewItem?hash=item150206597663
that one is a little rough in 1 or 2 areas, but the price certainly is right.
I still think you should look into a Taurus wagon, they are nice to drive, cheap to run, cheap to buy, either of the motors (Vulcan or duratec) are reliable as hell, and on top of it all parts are extremely available and cheap if you do run into any issues. Plus the Cargo Volume of a windstar is 26.30 cubic feet, where as the Taurus wagon's cubic feet is 39