Hi
kybbay! I would like to welcome you to our site and to e-smoking/vaping.
Having never heard of Krave, I did a quick google search, which turned up the
smoke51 site. Not a whole lot of information on there, so I can't really tell what model it would be the closest too. However, you are on the right path. Disposable electronic cigarettes would probably work best for you since you already run a smoke shop. Disposables are relatively cheap and since they are considered throw-aways, you don't have to worry about a long warranty period.
On the other hand, they are not as readily available. There are a few other "disposable" types out there, but we vapors in the know usually stay clear of them.
Ruyan sells the
Jazz, which is about the only one I personally would want to try. The Jazz is nice because it is a self contained unit. No pieces or parts to interchange/loose. It is quite hefty in size however.
Most people when they get into ecigs usually go with the
DSE901/
RN-4075. This, I would have to say, is the most popular of all electronic cigarettes today. Parts are easily available and they are very durable. If you were considering going with anything beside a disposable, I would hightly recommend these.
Most (if not all) of the companies that produce these can be contacted either through their websites, or
alibaba.com. I would start there and see where it goes.
First Union (RN series of ecigs) on alibaba.com
Sailebao (DSE series of ecigs) on alibaba.com
Ruyan (Ruyan line of ecigs) on alibaba.com