Cylinder head issue was resolved by TSB a long time ago. It is practically a non-issue now as it would have cracked and have been repaired long before you've gotten it. Easy to check, pull the plug wire cover and check around the plugs. If they are steel, that is okay as they were likely installed properly (not over-torqued, which is part of what happened in original runs)
Valve spring pressure is very high on the Lotus head, designed for much higher RPM than the computer will allow. Lowering the spring pressure with aftermarket keepers will help the cams live longer at the types of RPM's most people run them at. Otherwise expect to have new cams made at some point from scratch for about $500/each. Unless you can find some NOS ones.
A/C compressors tend lose their seals from lack of use. They dry out and fail. Replace the seals and use it once a week (it should automatically come on when using defrost to dry the air) Otherwise the hoses break down and leak. Newer refrigerants can leak through the older style hoses. R-134 works okay, but you really want to use R-12 or an equivalent. Depending on the age, the A/C clutch will fail (just like any A/C clutch will eventually)
There aren't really any good OEM equivalent struts around, but Koni's are available NOS from some of the T-D vendors and well worth it. Eibach lowering springs are also available NOS if you search around online. Makes for a competent package. Panhard bar in the rear is a little flimsy and tends to move the rear suspension laterally a little when the car is lowered (I measured about 1/4" on my factory lowered car, the eibach lowered car was a little more). Adjustable panhard rods are available from the T-D vendors as are front strut tower braces.
Motor mounts and suspension bushings are available in Polyurethane from my buddy, Johnny, at Polybushings.com. Every T-D should have his motor mounts at least.
Transaxle and shifter are essentially the same as a 1st-gen Neon. So Booger shifter bushings and short shifter will fit. OBX/Quaiffe/Phantom Grip limited slips are worth the investment on a high powered front driver. Otherwise, don't do one-wheel burn outs or you'll spit the diff pin out of the case. Also, don't power shift it, you'll just break it and not go faster.
"I can pretty much guarantee that when you were in both lanes sideways you didn't have your turn signal on." - engineerd