The seat risers, seats, roof hoop, canvas roof, windscreen and hinges are interchangeable. The back panel is the same apart from the mounting arrangement. The floor panel is very similar but with more holes for levers etc.. The side panels are the same except on the WLF they have an angled cut-away at the front lower edge to accommodate the fuel tanks. The scuttle and dash are completely different.
The back half of my spare Danish WLF cab turned out to be a converted Jimmy one.
Various of these cab components were used on a variety of soft-top trucks. For example, the windscreen assembly also fits the Autocar.
Hope this helps?