The elmac is new to me ...
I see one sticker on the curbside. Are there other stickers, plates or ? Can you post pictures of them?
It looks to have come from the same or similar molds, but some of the things look like post production mods. For example the frame, vent at the front bench seat and drip rail over the rear window are different than most.
There is a thread on the boler
history started a while back, you might get some info there, or I'd really appreciate seeing anything you can add. Here is the link:
On second thought, any chance your elmac might be an el macho?
tom w a member here has had one for about a decade now.