[Arran]

I know all about that sort of "Collector" I've bought sets that used to belong to that kind, basically radio hoarders is what they are. I have some issues with acquiring one too many sets but they are always kept in dry storage, not a dilapidated porch or basement, and I definitely have ones in mind that I intend to part with.
I can tell that the 90 lowboy you picked up was headed in the same direction, spots of chassis rust, lacquer starting to lift. I think that if you had not rescued that set it would have been reduced to parts set status in a few years. The LZ combo you mentioned probably was a 91LZ, they are supposed to have a cable running between the speaker cabinet and the control portion.
Regards
Arran