Mine has four leafs, if you count the bottom leaf which is about twice as thick as the other three leafs at the mounting point under the axle.

If you get a set of Rodeo springs and keep your Amigo springs, you should be able to assemble a spring pack using leafs from both sets to get a higher lift. The only leafs that appear to be near the same length in both my packs are the ones that attach to the shackles and body. The top two Rodeo leafs roll over the attaching bolts for the shackles and body mount points. The Amigo springs only have the top spring curling around the mounting bolts. Also the leafs on the Amigo line up with the center of the mounting eye, while the Rodeo springs come in at the bottom of the mounting eyes, automatic 1/2" to 1" lift.

I picked mine up from a local salvage yard for $75 for the pair. They are heavy so shipping from where ever would be high. They have several more sets, they acted like they were not a high demand item so you should be able to find a set at a wrecking yard near you.