‘69 Bumper Jack

Gents, looking for a little guidance with the correct mounting of my ‘69 Valiant’s bumper jack.
So from searching the forum, my understanding is the tire iron goes through the welded “U” on the floor pan, with the lug end nesting in the bracket just forward of the passenger taillight. The tire iron routes over the flat thin strap welded across the bracket, and locks into the “V” at the rear. The jack post top rests on the forward/elevated bracket, with the post bottom seated into the lower/rear bracket on top of the tire iron. The post/jack mechanism are oriented so the lifting face is down, and the jack handle would face up. The jack retention spring hooks onto the jack mechanism, and onto the tire iron, on the rear side of the welded floor pan “U”. Cranking the jack up, places tension on the spring, driving the jack post down keeping it seated in the lower bracket, and firmly against the upper bracket. This also forces the tire iron up against the “U” resulting in secure rattle-free storage..

The info I’m looking for is what exact spot on the jack mechanism the retention spring connects to, and exactly how the bottom of the jack post seats/locks into the lower bracket with the tire iron in place..
49 years of hauling hat boxes, suitcases, tennis rackets, and typewriters has left the lower rear bracket, thin cross strap, and “V” notch on my car damaged and it all needs to be masssaged back to it's former glory. Thanks in advance