Yea subframe connectors are on the list.
So I bought some doors from a guy who builds Foxbodys and puts them back on the road. He has a ex-CHP '89 fox with 450rwhp supercharged and 6-speed T5 transmission and he let me drive it!!! It makes my Mustang feel like my honda insight hahaha!!!! Oh boy do I have the performance bug now! I'm going to be getting all my parts from him because I'll be able to do most of what I want to do through him. (pics of the engine below).
He has for me
BBK ported manifold.
Adjustable front koni shocks.
Rear struts.
Springs.
70mm throttle body.
Cold air intake for the TB.
Tubular upper and lower control arms.
All for 1,000$. He really likes my Mustang and was very surprised at the health of it. He said he has never seen a Foxbody with so many miles that is so original. He didn't believe be at first when I told him it's the original transmission/engine. Apparently I was right, I do still have the original suspension except for Springs, I guess my uncle put Springs on the car, but that's it.