1/35 Polish 1939 soft skins seem almost nonexistent. I have the Italeri 1/35 Fiat 508. From the limited amount of info I have found so far, most of the differences appear to be internal, meaning not visible. So, converting the exterior to other versions, specifically the artillery tractor, should be doable. However English language books also seem few and far between. Would anyone be aware of already made conversion set(s) or English language publications with good photos and drawings for sides, top and rear views.
Thanks
Frank