there was a bicycle shop in Greensboro NC that had (probably still has) an NOS daelim engine on a shelf. they sold peugeot back in the day, tomos and maybe trac?
that is interesting, about the batavus thing... i didn't realize those ever came on them. That color scheme showing in the picture is also one i've never seen, must have been late, mid 80's maybe?
i know batavus did use a pretty wide crap shoot of engines, everything from sachs shifters to peugeot, so i'm not surprised but that is definitely the first i've heard of it.