Wiring? Speartech, AAW,Gmpp,Isis

[snappytravis]

I spent the last evening reading comments on wiring. I am building 69 camaro ls3,t56, I have smoothed the firewall comletely and have some ideas in mind for the wiring would just like pros and cons from the forum members.
AAW I see they offer a hot rod 22 kit, think this would be a good choice for all my body electrical. Headlights, taillights interior.
Ron Francis (keeps flashing on my computer) how does this compare to AAW?
Speartech? Is this a custom version vehicle specific for cars needs? What price compared to Gmpp setup with drive by wire throttle o2 sensors and ecm?
Gmpp and Speartech are engine management Inj, coils, alternator, starter, fuel pump,
Isis I recently saw a saying that said If you cannot explain it you do not understand it well enough! It looks expensive I think it runs everything by grounding the items instead of having constant power?
I am leaning toward AAW and running the 22 pin setup, Most people mount the fuse panel behind factory stereo location or in the trunk?
Thanks for the help