supercharger w/N20 timing HELP

[coolguy620]

i've been running a stage 1 nos 80 shot on my mildly modified 94 cobra for about a month.. my entire electrical system is still stock so i just keep my base timing retarded.. i'm about to add about a 9# vortech blower which i'm putting together from buying parts here and there but i don't have any electrical stuff..

the question is, how can i run auto boost retard then have it compensate for when the spray kicks in at full throttle..

should i run an msd btm and then add a timing computer that will compensate for the spray?

OR

should i run a msd digital 6 plus and use the built in single stage retard for the spray and add a boost timing computer

OR

can i just get a custom ship burned that can do all or any of this?

I don't know if any of this will work! it just all sounds good in theory! as far as hooking the nitrous retard up, i think i can connect it straight to the solenoid so that whenever it gets power (opens) it will initiate the retard..

any advice will be VERY helpful!!