Need some pics and info on mounting jack

I would start off at the junk yard for those brackets.
There are two locations where they mount, on a diagonal brace and between the spare tire well and trunk drop off.
You may already have the diagonal brace, that just requires a slot for the tab on threaded rod to secure to.
You may in fact already have the mounting points in your car considering the bumper jack is mounted on that side too.
If so, I have all the hardware require to mount the jack and tire if you are looking for them.
I will snap a photo of my '85 442 tonight.

There is a triangle like bracket that secures it to the top of the jack.
The iron lays on top along a channel and is slipped between the scissor somewhat.
The curved end sits towards the rear and is held down by the unique triangle like bracket and wing nut.