M!ke, the only 'wrong' thing would be to keep your car off the Houston streets for too long...Here is the longer story on clutches, short story is that the cover is standard Ford and a Chevy disc works but may need machining back the nose...I think Steve published a picture somewhere in another thread.
Steve had motor mounts and u-joints, the U-joints are supposedly common with Chevy truck. Should be easy to confirm with your favorite parts guy.
Front ball joints are here, https://pantera.infopop.cc/top...angusta-ball-joints, see Dick's part numbers but also note that fiat Plus C. Obert http://www.fiatplus.com/LOWER-...KIT-0005880297N.html
distinguishes which version of Fiat 124 is a mate for the Mangusta (at least 8ma1076 needed the <40mm ball joint).
I bought front suspension poly bushings from Hall Pantera. Renault R4 rack (Dauphine) supplies the steering rack boots. Tie rods I thought were from a Fiat 600, but the parts manual lists them from Fiat 1300 (as are the stub axles themselves, see below).
Re: other things to do while the engine is out--I'm a big fan of replacing everything old and rubbery--You might use the opportunity to re-grease the Heim joints and replace the plasticized heim joint booties--stretching these on with grease is actually very easy. Guessing that all the water hoses are old, just a lot easier to replace the lines now. And with all coolant out, treat/repaint the water tubes while its easy. Paint or WD40 on the bell housing (I went with paint), a pair of new motor mounts. And yeah, not a bad time to pressure wash and even hit what you can of the frame with epoxy primer-- Next to replacing rubber, I'm next a fan of rust prevention (! esp, cleaning anywhere that holds water, drilling drain holes and bathing anything that could hold water in POR15). But not much is coincident with the engine work and you just don't have to spend much more focus than just getting the car running again. Everything else can be its own project...