there's also a good seller I've used who sells a range of genuine and clone items which can be pre-built with your choice of coil in whatever gauge, resistance, wire type you want.
I have only used eBay once for vape gear - the Jolly Vaper sent me a very nice rubber sleeve for the Noisy Cricket. It has a MiB Noisy Cricket in relief on one side. Arrived the day after it was sent. Would use again - but I only wanted one really