A nice thought but having owned several HOWA Mini's I just don't like the magazine sticking out of the stock. That said it is still an interesting idea. All three of the Mini Grendels I owned shot great but the cheesy stock and magazine ruined them for me.
I understand. Just wanted to let you know it existed, as that site is the only place I've seen it mentioned.
I agree about the mags, but am about to bring my second one home. Assuming it's a keeper, I'll replace the trigger guard with an aluminum one, which is tolerable. I live in hope that eventually they'll bring out a floorplate for it, if I live long enough. For only $359 from Whittakers, I can overlook a minor issue.
Brownells has nice walnut stocks for Howas for about $215, and there's always Boyds. However, I'm not a lipstick on a pig guy, and the oogly factory stock fits pretty well, and is pretty easy to improve.