hjælp ny starte, concept ....feedback

Hi sorry but y danish is not so ggod so ill write in english.

I have for sometime now been considering starting a webshop that sells discounted authentic designer clothes accessoreis that you can not find in denmark. Brands like gucci, d&g arc jacobs  british, italian and  american. I have found some contacts  but would like to have some feedback on my ideas. typical discounts eg 40-50%

1. group buy website.

2. exclusive private members club wherby customers can buy designer brands and also rent designer goods eg hanbags, fashion.

Is there a market for rentable desingner clothes and accessories.Thanks for imput.