Air spring considerations?

Thinking of buying some air springs for my Tacoma. Generally, I have 300lbs in the bed and 1 or 2 passengers (150-300lbs). On trips with friends (perhaps once per month), we'll have more gear (500lbs) and 5 passengers (750lbs).

There are two types of springs:

• rolling lobe
  
• convoluted bellow

Does anyone have experience/thoughts on them? I'm leaning toward the rolling lobe style as they appear to more naturally support extended travel. For work, I use a lot of rolling diaphragm cylinders which are pretty similar to the rolling lobe with an outer sleeve.

 

It looks like a matter of capacity, the 2407 is much beefier.

I've had the smaller one and had no issue with it (I overloaded with 1500# on a f150). They aren't really intended to do much beyond leveling the truck with load.

The 59561 is all you need to prevent squat.

 

The convoluted bellow (firstone 2407) type definitely takes a higher load and lower travel by design. I feel like most people here use the firestones, not sure why I don't see the other type? More similar to what you find on land rovers, for instance.

Edit: mostly looking to not bottom out over bumps with my varying loads. Ideally, without limiting travel. I'll set up proper valving to configure them independently/coupled for on/off road and add in a spare regulator.