Site e-commerce (boutique de dépôt-vente en ligne)

Bonjour, je cherche des développeurs pour créer un site e-commerce (boutique de dépôt-vente en ligne). Le site va être bilingue FR/ EN.

Platform: Prestashop
Frontend Theme (responsive) to customize: London Star Demo home page 3
[URL visible pour les membres Pro]
We’re open for suggestions if you think there is a better platform/ theme

We have an Art Director who will work with you for the definition of the Front End (visual identity/ universe of the web). We already have a logo and its guideline.

CONCEPT:
We provide a personalised service to resell luxury secondhand goods to fashionable women whose dressings are too full.

We collect items from sellers, store the items in a warehouse and sell the items through the internet (through our e-commerce site). When an item is sold, sellers will have three options of payment.
We will need to use Mango Pay & PayPal.

We need your help to define the conception of the site (especially backend) and to develop it (customize an existing theme).

Target: e-commerce ready for a beta test mid August. Go live early Sept.