The trojan t-145 batteries in that truck look like they are $195 apiece, shipped, without any shopping around, and there are 24 of them, so that is $4680 worth of 144v DC power (which is what existing motor controllers like), so it doesn't make much sense monitarily unless you have a freebie 100kw diesel generator laying around and a 600 amp rectifier and 144 volts of buffer batteries.
http://www.ebay.com/sch/i.html?_saca...+T-145&_sop=15