Ok I'm trying somthing new, I'm building a battle truck “the ultimate battle truck” to be exact (tee hee)

and I was wondering if you guys could help me (??)..
Here is what I’ve got!.
(
live Rocket pods!)
(Got to love this hobby!) 
#1. Can you recommend or point me in the direction I need to go to find a firing mechanism for my rocket pods?
#2. Do you know how I can set them up to fire after each other 1bang Right side …2bang left side and so on with only a sec or two between side / rounds..
#3. Can you recommend any packing I can use to hold them while drive / bashing ? I was thinking cotton or wax ???
(Also!!) 
Does anyone know where I can get a full cage roll bar for either a GorillaMax or a X-Ray truggy ??. (I need to make gull wing doors) that raise up exposing the rockets pods then firing.. I need a strong frame to work from and bolt things to..
Here is what I’ve got so for..
Thanks for your time team..
P.S.
I’ll post pics of its 6mm (Simi auto) paint gun soon as well…
“Lincpimp”. (I found my setup last night), I should have by the end of the week…..