It would have to avoid looking like "e-leatherbay". I would think that all items would need to be 100% made by presenter himself/herself. If 10 leatherworkrs participated, there would probably never be a problem. But, if 100 or 500 particpated, there would inevitably be complaints and other problems (e.g. someone getting in that makes some items and imports some poorer quality items or parts).
In past life, I've participated in some juried shows and galleries. That seems to work well as long as jurried catagories are fairly narrow and not broad (e.g. carved bags, holsters, embossed pictures, saddles, etc and NOT handcrafted leatherwork). That would specialize folks in one or 2 areas that they are particularly good in and enjoy. Most would probably do that anyway. Newer folks could get jurried in one area such as knife sheath or wallet. Long experienced folks would likely specialize somewhat even though they could technically make anything. Can't imagine a newer person taking order for a saddle because they have made one in a closely supervised class.
Well, I guess that is more than 2 cents,,,,maybe 4 or 5 cents [lol]
Regis