Keep your Ebay store.
1)Building a website with 6800 items will take a few months to build.
2) It will take a long time to build traffic over 6000 hits per day. Unless you havve deep pockets and plan on spending a fortune on PPC.
3) Keep your Ebay store even after your website takes off. You will see that there are ebay shoppers and there are internet shoppers. IE Wallmart and Neiman Marcus don't always share the same customer.

I own an Ebay Store http://stores.ebay.com/Patio-Home-and-Hearth Along with 8 websites and a retail brick-n-motar store. And they all have different customers. Sometimes we get people comming into our retail store with printed out pages of our website only to find out that our instore prices are the same or less. Some days Ebay might sell more than one of our websites or even our retail store (right now our state flower is in full bloom "orange barrels" in front of our store and it will be till October) some days are slow in the store.

I always feel that a buck is a buck and the bank has never asked me where it came from. Our store, the websites or Ebay except when I deposit several money orders per day from Ebay customers.

10 cents per item is CHEAP!!!!!! That's a full month 30 days of unlimited clicks! Try paying $1 - $2.00 per click if they buy or not!

If your concerned about the 10 cents raise the price of each item $1.20 Then your covered for the year!

Compare the cost of an Ebay store verses a webisite. Hosting fees on a website with 6800 items can run $100 - $250 a month and some take a cut of each sale! Then you have your credit card processing I use First Data 1.96% for internet sales this is good. My retail store is 1.65% (phone in orders are ran throuh the store terminals).

Ebay is very few phone calls where a website is constant phone orders (many prople don't like giving CC info online). I have 4 full time customer service people handling phone orders, October - January I have 8 - 10.

I am considering opening another store one of the Pro Stores that Ebay is promoting. This one will allow you to maintain your inventory in your store and on Ebay it could be easier for you.

If you still feel that the 10 cents per item is too much drop some of your slow sellers and promote them on your website.

Good Luck hope this sheds some light.