If your head liner has a good backing you can scrape off the old material, glue on new stuff but I got one that is abs (?) plastic with the material glued to it, I think it was from lmr, you know stangnet members get a discount from our vendor sponsors.
I have the sunroof option so my backing was junk.
It sounds like you have some leaks beyond just power steering fluid if there is oil all over your k-member & h-pipe. Do a good degreasing & cleaning of those areas so that you can pinpoint the leaking areas. Power steering fluid normally leaks where the fittings go together but it could have a pinhole in a hose. Spending a weekend replacing all of the gaskets, belts, hoses, and vacuum lines is time well spent.
For the power steering, you'd be better off fixing the leaks on whichever part is leaking: rack, hoses, or pump / reservoir than just ripping it out and going manual. None of it is very expensive and you keep things working correctly.
Truthfully, neither is a monster (sorry Mike). A bit of a PITA, but you can knock it out relatively fast.Man it gets better, got it up on jackstands and theres transmission (red) fluid coming out from where the driveshaft goes into the transmission i think it's the tailshaft bushing, easy to replace? I guess I'll be spending alot of time replacing seals , ugh, also I think the rear main seal is leaking