You can't go wrong with CKtG. Mark is a great guy and he really knows his stuff. This is kind of a cliche but he will give you good honest advice and not just try to sell you stuff you don't need. He actually plays with the stuff he's selling, so he's not just reading something off an index card to you.
If you get the EP Apex from CKtG, I'd say you'll want to at least get Kit #2. Kit #4 doesn't add anything you really need IMOHO. But I will say that it's absolutely worth the money to get the kit with the Chocera stones. They're perhaps the best synthetics in the world at any price, and once you use them you probably won't ever use a stock one again. I got my first custom Chocera & Shapton stones about 2 years ago and I only ever dug out the stock ones once to compare them- I think I gave them away a while a ago. The upgraded stones cut faster & finish finer than the stock ones.
You can get strops made for the EP, but if you wanna strop by hand the Hand American strops (also available at CKtG) are superb.
If you need any more help spending your money just let me know- it's a specialty of mine!