Not sure how hard it would be to use the running gear from one of these? Will probably start becoming donors when the sierras start running out, not that they are really scarce!

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=4640393052&rd=1&sspagename=STRK%3AMESE%3AIT&rd=1

I was at Luego a couple of weeks before there end. Grant had 2 sat out front to develop as donors for the Velocity, I think he said.