Gt28ror 28rs would be a good starting point ,with a 8k launch even a 3071 or 3076 would work well.
What are you doing for additional fuel
+1
On the extra fuel part you might go with secondaries you can build them your self if you dont mind the fabrication since you have some time on your hands plus its about the same price once you buy a powercomander,FMU,bigger injectors, and dyno tune it.
Or i could set you up with everything you need if you didnt want to build it yourself but i dont discourage people who want to build it them selves its a good learning experience.
The advantages over the stage one setup is more precise fuel control and you dont need multiple maps for different boost levels.