So, after further research the FJ Fox Shox would probably be too long for our application, not only would there need to be an extended bumpstop but a limit strap as well.
There is good news on the rear shock front though. Today I talked to
Radflo and they are willing to custom make rear shocks for the 3rd Gen 4Runners, for $185 a shock in their 2.0 emulsion shocks. The problem I am having is getting a compressed and extended measurement to give him for the shock. I do not have my rear coils yet and I imagine this would have some effect on the measurement! I think the OME shock dimensions could be copied and would most likely match well when using the OME 890 rear coils.
Shawkins, you don't mind clogging up your thread with all of this shock talk? We could start up another if you feel it detracts from your build thread. I am sure a mod could be persuaded to split off the off topic (from your build) stuff to its own thread.