Bags in place of coils ? 68 Burban. What Bags

[72MARIO]

I see that ECE sells a air ride kit for trucks and burbs. I would like to put somthing like this in place of the rear coils. So I roll low and still tow a car trailer. I dont think I am going to notch it because I am worried about the strength.............. just put in a 1/2 bump stop on the frame.

I see that Air lift has a small compressor kit looks neat and small would it work oky ?

So what bags should I use besides the ECE kit ?

Panhard bar ?

I have looked at the KP kit with the notch and truck arm kit it looks really neat but would it still be as strong as a Factory frame ? I would love to go this route but I need to be able to tow.