The iclear 16"s are extremely good for a clearo and can be used with your existing battery.
The coils are replaceable and are pretty cheap too.
Search Amazon you should be able to pick them up from there.
Those clearos are absolutely awful. I would strongly advise you get yourself an Aspire K1 << (link) tank. That is as close to what you are asking for as you can get, and it works on standard ego batteries. It’s what finally got me off the cigs, those clearos used to drive me up the wall
The Aspire K1 is good, you might also want to try the Kangertech Protank 3 mini, which fits an ego-type connection nicely and you can get from Amazon..
I use the aspire k1 and aspire c e5 bvc tank/clearomisers for work and they are pretty good.Both use the same coils which last for ages.Shop around if you are interested in either of these as the price can vary quite a bit. Vapester seem quite cheap.
getting good reviews from most people that got one in the giveaway last month
gave mine to a friend who was also using clearomizers and was complaning about leaking
he now claims its the best vape hes ever had