[ausev] Motor size for Dodge Grand Caravan

[evehicle4me at hischopsticks.org]

I have googled and found a number of mentions of people converting  
Dodge Caravans to e-cars but I have not found a page that gives the  
specifics.  What I am looking for is how large of a motor should I use  
in a Dodge Grand Caravan?  If I follow the lead of the guy who  
converted his 4x4 Jeep Cherokee will I be in the right ball park?   
http://www.evalbum.com/589  The vehicle weight and aerodynamic drag  
are probably the same.  In addition to the weight of the Caravan I  
plan to convert it into a mini-motorhome, possibly with the inclusion  
of a fiberglass top to add 6-8" inches of drag, a small fridge,  
microwave, a bed and a few other things.  I am guessing that the top  
will not add significantly to drag.  Total weight will be be about 400  
additional pounds but I will be removing at least the rear seat, if  
not more.

If you have converted a Caravan (or Grand Caravan/Town & Country, etc)  
please let me know what you used and what the results were.