The small mens kookaburra was from us, we have another just like it.
The difference when it comes to small mens, academy, womens, etc etc is usually overall size but also weight (ive seen them anywhere between 2'2 and 2'10)
Sometimes the blades are narrower too, but this varies by manufacturer.
Long blades we don't hold a great deal in stock but can easily get them from Kookaburra, we would provide them as an off the shelf option for Focus if we felt the demand was there. Our experience is in the grand scheme of things there very few long blade users and they tend to expect to have to go bespoke/semi bespoke anyway, which i suppose only encourages the retailer/batmaker to hold less off the shelf stock.
In terms of long blades, aside from Kook off the shelf we have sold LB bats from the following brands over the years B&S, H4L, GN, Hunts and TON