If they don't sell cartomizers I would not buy it. Atomizer+cart is not a great way to vape. Most people prefer cartomizers. I still haven't figured out what a 902 is. You may be stuck buying everything from wherever you bought it.
And I would never buy auto batteries.
What are the mah of their batteries (and if they don't say I would also never buy it)
Hopefully it's just some kind of frankenstein 510
If I had to buy it, I would buy these longer looking manuals. WAIT - They say theirs is compatible with KR808D-1 cartomizers so guess what - it is not even the same model as the ModernVapor 902.
http://www.cigeasy.com/product_p/kit12.htm
IMO if you want short with a cute PCC buy Joye 510 manual and get the PCC at NoSmokeVA.com.
If you already bought your list, ignore me and enjoy it. Most people buy another ecig in the first month anyway. I bought 2 more in the first month.