Is this what I need?

[Chlsnk]

After alot of reading I have decided it is a better option to bag the front suspension of my truck to lower instead of using drop springs.

I have come into contact with a local guy who has
2 chassis tech 2600 bags dual port 1/2 in 4- 350psi 1/2 in valves two plates
and a 5 Gallon tank I can pick it up pretty reasonabley.
The truck Im looking to bag is a 84 C-10 I am wanting to keep the stock A arms until I have more money to invest in tubular.
I am wanting to know is the chassis tech 2600 bags the correct type of air bag I will be able to use on my front suspension?

****Question 2***

To use the stock A arms Im going to have to use cups for the bags to sit in correct?

Is a 5 gallon tank enough volume to use for a front suspension bags or will i need something bigger?