Dropshipping.Shopify payment methods. Need to register a business?

Hi guys

BACKGROUND
My biggest problem with dropshipping and FBA is payment. I'm really sick if it. If I try to dropship from amazon to ebay, I need gift cards. Amazon doesn't sell it to non US paypal. US stealth paypal still can't buy discounted amazon cards from cardcash and others. It is just an example. There are much more other problems. So I am thinking about focusing on Chinese products(not only aliexpress) and sell them on shopify.

BODY\QUESTION
Will I have simlar problems with…

Dropshipping.Shopify payment methods. Need to register a business?