What to check while Valve Covers and Intake Manifold are off

What to check while Valve Covers and Intake Manifold are off - General Mechanical Advice
What to check while Valve Covers and Intake Manifold are off - General Mechanical Advice

Car: 1990 Pontiac Bonneville LE
GM 3800 LN3
About 227,920 miles on original drivetrain
If it burns oil, it’s not enough to notice. Only drop in oil is due to leakage (I think)
Leaks: Valve Cover gaskets, tranny pan gasket, Oil Pan gasket

I’m planning on doing valve cover and intake manifold gaskets on my car in a couple weeks, and was wondering if there is anything I should check/torque while I’ve got it all apart. It’ll probably be apart for a few days while I paint those parts (will cheap spray paint work fine? Kind of on a budget). Also, how difficult would it be to clean the throttle body (or do I even need to do that?) I want to knock out as many repairs and preventitave replacements as possible while I wait for the rest of my parts to ship. I will also be dropping both pans (oil and tranny) and doing new gaskets and tranny filter, and need to know what to check/torque with those. If you have any other advice as to how K can keep this thing going for a long time, please tell me.

Finally, any recommendations for paint colors on those parts? (Plastic cover included).

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