Honestly, we can only find the WW1 part on ebay (I don't think Tamiya will rerelease this chassis type, cause WW2 alive). But if only repair the body part, we call order the WW2 parts.
All of my WW1 is buy from the 2nd market. Of course, I also order a set of WW2 body set.
U can watch that one of my chassis is missing a chassis cover, I still looking for some extra part to finish.