What's the best theme for a quick disc golf e-commerce store setup?

[Bigg3]

I am trying to build a new disc golf e-commerce store. I would use 10web and copy one, but the number of pages would take forever. I am using the Expance theme to build the site quickly. I am competing with these sites:

Infinite Discs - Your Online Disc Golf Store

discgolfcenter.com

DZ Discs - Drop Zone Disc Golf – Drop Zone Disc Golf (DZDiscs)

Only The Best Discs - Only the Best Discs (otbdiscs.com)

and 

Disc Golf Store | Build Your Game – Foundation Disc Golf (foundationdiscs.com)

There are others, but these are the largest. Does anyone know what theme might work the best or how I can build this in less than a month or without spending $10,000?

I have an eBay store that I have had for several years, I have sold tens of thousands of items on that site, but the fees are out of control.

Any advice would be most helpful. I work full time and have spent another 9-10 hours daily trying to get this off the ground. I get stuck loading the items, and my store does not look as good as I would like.

Thank you so much for reading this. There are super experts on the site that could help, and I have a lot of skills in areas other than building the store and could return the favor.

(marketing, business practices, networking, etc. I have been the Human Resources Director of an amusement park in Florida for many years and want to build my own empire. 🙂