Nice looking Viper! I can't tell from the photo if you are using rudder or aileron control.
At least the AF ESC has linear control on 8-cells so I would probably start with that since I have two of them.
My indoor events are done for the season so I have to change my focus somewhat to build micro-flight planes for outdoors. The good ol' Viper conversion falls right into that catagory.
What cell type are you planning on using?