Yeah, I see stuff all the time on the internet and then I realize I know the person. Funny how that works.
We have five Miatas at work and we all park together. One of the other guys wanted to get a stainless steel mesh grill for his Miata so he Googled "stainless steel grill" and it went to my Spridget page (the race car has a stainless steel mesh grill).
Anyway, on the rear I used the same Monroe shocks with the upper cover trimmed off. The rear lever shock attaches (by a link bar) to the leaf spring clamping plate (the big U-bolts go through this plate). Flip the plate upside down and attach the lower mounting hole of the tube shock to it. The upper shock mount can go through the upper mount for the axle strap (you can delete the strap or reposition it). With the ride height lowered about 3", you still have plenty of shock travle left (in other words, the shocks won't exceed their travel limit).
By the way, I added two extra leaf springs to the rear. Normally this would raise the rear, but I "re-arched" each leaf spring. I did this by cold-hammering on an "anvil" to flatten them out. The "anvil" was an old 1500 engine block with a hole in the side of it. I ground the top of the block so there was no sharp edges and I hammered it over an open cylinder bore to change the arc. I did matching ones from each side and kept eyeing them up...primitive, but worked well.
Cheap and a good excuse to do in a six-pack.