I haven’t tried it, but I would bet that it’d work. There’s a fair amount of play in the Kifaru tabs
(I don’t remember what they call them) if no one has tried this and lets you know, I’d just call and ask what the spacing is on each belt. As long as the mystery ranch spacing isn’t further apart than Kifaru it’ll probably work fine.
MOLLE is MOLLE. For what it’s worth, the MR forager pouch is pretty usable size wise. I think any bigger it would be in the way more than anything. It certainly couldn’t be much longer or it wouldn’t fit the curvature of the waist belt with the different sectioned pieces.