My client already has 100 products. They what an online

My client already has 100 products.

They what an online store.

– What are the best themes to use with marketpress?

– Does Market press allow me to put products in by category so that I can have links to just that category?

– They also want to be able to sell products to both individual customers as well as wholesale.

– Is it best to have 2 different sites – 1 for retail and 1 for wholesale?

– If not, or is it better to use the membership plugin for the wholesale? Can I offer free membership so that once they are approved as a wholesale buy then I can add them to that membership level? But then I’d need it so the products would only be seen by them and not by the individuals.

What is the best way to proceed on this? Please advise.