Try this Company http://www.rmrmodels.com/index.html- 1/25 scale Resin kits
This Thread from 2008 has two photos of completed model http://cs.scaleautomag.com/sca/general_discussion/f/3/t/74831.aspx?sort=DESC
" They have 9 different fronts which are from the 40’s and 50’s, all attached to the same rear. All have interior seating and chassis. It’s up to you to provide a dash, driver’s seat and engine."
It was made from one of the bus kits listed in his Products. Kit price $85.00