That's a really nice front compartment. I want my daughter to clean up the one in the front of her car the same way. Rodney Dickman doesn't sell those spare tire covers anymore either, which is kind of sad. I have one too that I got from Rodney... actually, it was the very first one that he ever officially sold. He sent it to me for like $25 bucks back in the 90s, and told me to give him feedback. Anyway, it appears as though he still had one left, which was the original prototype that he made, which I ended up buying from him in his "second chance" section. It has all the measurements and stuff written in sharpy on the inside, but no logo. I seriously just got distracted, haha... I looked it up and the product has changed hands twice from Rodney, and now they're being made at Fiero Interiors:
http://www.fierointeriors.com/fiero-products.html... only thing is, they're not allowed to use the Fiero logo anymore. I know that Mr. Mike was also given a cease and desist order... so now he'll only sew on the original Fiero logo if you take it from another (older) seat.
Anyway, back on the topic... I just looked on eBay and found a jack mounting bracket. Turns out they're basicaly identical from 1985-1988. It was a 1-year only design for 1984 for some reason, but they changed it in 1985. I'll take pictures of the one my daughter took off later (and compare them), but the one I just bought on eBay looks like this (below). The ONLY difference between hers and the one I just bought, is a little cut-out and the hole drilled (with the slip-on nut). I circled it in red... otherwise, they're totally they're identical. So she can re-use her old jack, and literally just replace this bracket.

There's still a stud that comes out of the firewall where the lower part of the coolant bottle would attach to. It appeared as though it might have clearance issues with the big tank, but I'll have to see when she gets the new bracket back in.