Reselling business

I have been buying and selling used goods for several years now, but I need some more capital to build inventory.  I would like to open an Ebay store, sell at local flea markets, and eventually open either a thrift type store, or a pawn shop.  I need money for start up fees, licenses, and for purchasing.  This is not just some overnight idea.  I have been buying at yard sales, auctions, and flea markets, and selling on ebay for quite a few years now.  I do have a full time job, but as a sole provider for my family, it is hard to have extra money for purchasing to get this going.  I'm not sure what I can offer for donation rewards, but in addition to donations, I also welcome any and all advice.  Thank you!