http://www.flickr.com/photos/roblangham
I think the answer is 'no' to both questions (kits or plans). The closest I can think of is this page, by Peter Kempf, for plans:http://www.landships.freeservers.com/new_pages/ww1_scale_plans.htmThe Rolls Royce tender by Matador.A Talbot and various Rollers by Reviresco.And the recent book on Talbot Armoured Cars may have a plan, but I haven't seen the book.