... Looks like it was a lot of work, but the result?
Apparently, this was done as a "leisure task" by a member in the German Club Pagode.
Basis was a very rusted up body shell. Engine, axles, H/T and many other units and parts are fully refurbished and ok however;
so, at any one time this "fun project" can be disassembled and the useful parts be transferred or sold.