Spark timing - Helm book says how, get a timing light, they have instructions.

Throttle body - take off the big intake tube from the aircleaner, look into the TB with a flashlight. Clean it with TB cleaner in a spray can, toothbrush or q-tips. Just don't lose anything in there.

Hoses - inspect them for cracks or brittleness. It's more common for them to get hard with age so they're loose on the fittings. Or you could buy a MityVac & actually test them. Radiator hoses get hard & brittle too.

Tranny fluid - drain & fill ATF. That gets maybe 1/2 of the fluid because the torque converter doesn't drain. So you do it again a couple more times after driving 100 miles. If the fluid is brown or smells burnt, then take it to a shop where they'll hook up a pump or something & actually flush it.

Manual tranny? - drain & fill but the interval is pretty long.

Cap & rotor should be just about the same as the Teg. Plug wires usually fail by the insulation letting the spark leak out. Often you can't even see the defect. Check at night by looking for arcing. This works better on a completely cold engine.