Leaf spring selection help

My springs are in reverse arch with 240 pounds of sand in the back, with about 2" of travel before the bumps hit the frame. They pretty much sit on the overload leaves, so I think it's time to start saving for a replacement set. It looks like leaf springs are fairly hard to come by on the classifieds here, and I don't really want to stick with OEM springs because they really don't ride all that well in combination with the TRD shocks.

My load carrying is pretty much restricted to light stuff, but I do leave the sand in the bed for 6 months of the year. Future load carrying would be a sailplane trailer with less than a 200 pound tongue weight. I planned to leave half of the sand in the bed for summer because the ride gets a little skittish over rough pavement when empty. I am not going for an AAL to help support the suspension. I was looking at the Alcan set on Wheeler's site because I do not want much lift at all and it lists 1.75-2" for that pack. I would like something that would be competent for dirt county roads which can have washboard and some potholes. I've read that the Deaver pack is a bit too soft for heavier loads, and I want to keep the capability of hauling my street bike (Ninja 250) in the back if need be.

Would the All Pro 3" pack be worth considering? I plan on adding a retractable tonneau to the rear, and considering I already have a double cab short bed truck I was thinking I may not get the full 3" out of that pack, which makes me feel better about drive-line issues (NOT desired).

If I could find a cheap set of the TSB springs I'd consider those too, but they seem hard to find, too.

I'm pretty sure my rear shocks are blown because the damping has gone to poo. I think I'm going to save my money for a while for a full set of Icons to go with the new rear springs. Not certain on that front but there's time to think about that.

 

Air bags

 

x2 that sounds good