Lotta money in those products
I agree with the above. You will spend a lot of money on those kits you mentioned. If you want the "system" to protect you from over -temps or -fuel, then, in my opinion, going off of what others have said (I have neither product), the Banks might be the way to go.
HOWEVER, it is always good to know what your truck is doing, and how to react (or proact) as necessary.
Get some gages. Learn what your truck will and won't do. Learn how to monitor the systems and how to drive accordingly.
Example, learn how to read the pyro, and what it is telling you. If it is getting hot, that means that it is burning more fuel without getting it out. How to fix it? Several ways. Short term and long term.
1. Letting off the pedal will decrease fuel, and the temp will go down.
2. Downshift. Lugging the engine is going to get it hot in a heartbeat.
3. Upgrades. Get more air into the cylinders by improving airflow. Lots of different aftermarket air filters and housings. I see what you have done here, but you may have to something different when you start adding stuff.
4. Get more burnt fuel out. Bigger turbo (be cautious of extra turbo lag), bigger exhaust, etc. What comes stock for exhaust is a poorly bent 3" tube with a lousy muffler and either a resonator or a cat. converter. I have a 4" mandrel bent exhaust with a less restrictive muffler, and the resonator is gone. Even a 3" mandrel bent tube with a good muffler will do wonders. You have "lost" you muffler, but you may want to go a step further.
When you have learned how to read the gages, then go with the add-ons. A box (Edge Comp, Edge EZ, or any other, most are pretty good-- I have the EZ, only because the Comp wasn't out yet) is a good bang for the buck. I never had EGT probs with the EZ alone, and my clutch held the power fine.
Injectors will really bring you Cummins to life. I have the DD2's. My clutch will not hold all the power. I heard the 5 speed clutches hold a little better, so you may be fine there. I have to be careful. It isn't gone, but I can't get all I want out of it yet. My EGTs have to be closely monitored, as well. I will get up to 1300 pretty fast on a good grade with my 5th wheel.
With regard to propane, I haven't used it, but my brother has it on his P-stroke. I drove it, and it didn't have any more power than my stock 2001 6 speed. I have also heard stories of it leaking real easy. That is a serious hazard (as with anything flamable). You need to be sure you use high quality hoses, tanks, fittings, etc.
Sorry so long. Good luck with the bombs.
SOLER