Sounds like you need to clean your carburetor. Remove, disassemble as sensible, soak, scrub, soak and blow out the components. Reassemble and re-assess. Try to avoid touching any adjustment screws. Also, ensure that your engine intake components are secured at least German torque.

Verify your window motors are getting full voltage and then verify your motor ground has good continuity, if both are good replace the motors; they're old and weak.

Sounds like your fuel level sender may be failing or your gage. Most fuel level indicating units use resistance to tell the vehicle how much is in the tank. Gain access to your tank and check resistance in the wires and then the sender. More likely than not the sending unit in the tank has failed / is failing due to corrosion. You may be able to clean it up with fine sand paper but it may be safer, especially if like me you like to run it to the gas light, to replace the unit if there's corrosion on the component.

As I'm sure you've verified the security of the general components in and around your wheel well to include the condition of your brake assembly the next possibility would be your bearings that could be going out.

I assume you've checked the bulb already so you're either not getting power to the light or you've lost your ground, check both with a multimeter.

Sounds like your rubber hangars may have broken from the attachments; either get new ones or get fancy non flamable or meltable materials to secure it up to the hooks.

If you're able to open up the battery compartment make sure all connections are secure and the battery is able to discharge. You can use your multimeter to verify the batteries charge level and then chase the problem from there.

Check your power steering reservoir; either the vehicles power steering pump is letting your know it's dying or you have no/not enough fluid. Alternatively if it only happens while driving you may have a chaffing issue where your wheels are rubbing on something.

You may find this parts manual helpful as it'll turn your problem into more of a Lego set: https://www.ereplacementparts.com/ridgid-r3101-compact-jig-saw-parts-c-7929_8237_155430.html

If there are still pieces in there and the key is pushing the debris and pin tumblers down the barrel won't turn. The stick may have lost pieces that are still in the ignition, remove them. As I'm sure you removed the stick your helpful tyke placed in there if there are pieces in there you may be able to blow/vacuum them out. Use a duster or something similar.