right now the truck is sitting at 9 inches of lift. 3" body and 6"susp. i have the 4" drop bracketry from rough country and the 6" skyjacker coils. my alignment is flawless and i only have the rough country drop pit man arm. A SAO is too expensinve and not worth it on my dd. I have seen a few rigs on this forum with the 8" lift and a 3" body lift and there alignment looks normal. so all im asking is can i get the 6" skyjacker drop bracketry and run a 8" coil with a bigger drop pitman arm? and possibly a lil custom work? will it stay aligned? how big of a tire could i run with the 9" lift and the 11" lift? i know the d35 ttb is only rated for a 35" tire, but i am curious?
You should have about 4.5" lift (you have 4" brackets, and the 6" SJ coils come up to about 4.5" on a Supercab).
You can get 6" lift brackets and run the 8" coils for a total lift of around 6.5". With the FA600 pitman arm it should be about the same handling as what you have now (other than the obvious fact your CG will be higher).
A true 8" lift will handle like crud on a TTB though.
As for tires, some here have run 38x12.50s on the D35 without too much issue, but every upgrade mentioned in the Axle Upgrade FAQ will need to be done on it, and you still won't be able to nail the throttle to the floor without fear of stuff breaking.
A D60 SAS would really be the best route if you want a lot of lift and big tires.