Welcome aboard!
Those aftermarket front and rear dual shock placements are what we called the "Standard" back in the late '70's, '80s and '90's.
These dual shock mounting areas were designed to help with all the little suspension and ride quality issues that Broncos were notorious for.
You have literally dozens of options on what to use now for an Early Bronco suspension system...all boils down to what YOU want out of your Bronco (and how much coin you want to spend)
Will you be driving your Bronco around town or on the Autobahn? Makes a big difference for the suspension and probably braking system you might like to start upgrading...
I notice in the rear you have what I believe are called the "Duff Torque Tamers" from way back...
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
these are mounted above the leaf spring to help reduce rear spring "wrap" as we call it... these are "old skool" but work quite well on stock springs.
Good luck and have fun...can't be too many Broncos over there!