TieRod

I don't think they'll fit. It'll be cheaper to buy new ones, which you can get for under $100 both on Amazon https://amzn.to/4apIBZM

Look around, maybe even cheaper.

Here you go:1997-2002 http://www.slickcar.com/details/57919-led-tail-lights.asp

You can probably use these: https://ebay.us/XYl4mV

Looks like its off a straight 6 jeep motor. $30-50 on ebay. 

Something like:

Looks like some sort of tester with LED light strips inside. I'm not sure that's automotive related through.

That's an idler arm bushing. Take a look at https://www.carid.com/1963-ford-fairlane-steering-arms-links/

what country are you in? 

I was going to give you a site for US junkyards but looks like you are in another country, based on that license plate 😎

Hard to say without a wiring diagram. That pdf link in that topic is a dead link.

Interstate batteries

Might be inside the rack and pinion or a sensor. Any lights on the dash? Check this gm article out https://gm.oemdtc.com/4286/loss-of-electric-power-steering-assist-2007-2012-chevrolet-pontiac-saturn

That looks like a fuel injector. can you take a picture of the bottom and top?

That looks like a steering shaft connector to the gear box.

First try to find out what they fit but because they are 20 series and low profile, I would try to get  $150-250 each so $600-1000 as long as the rims aren't bent or damaged.

I'm surprised you are having so many issues with aftermarket axles. Vibration and shaking is usually caused from the axle being out of balance. Try rockauto and carid to see how much the axle is. Also go to a carquest store and see if they can get you an axle from worldpac which will be like OE but cheaper.

most auto parts stores use data from activant and whm cataloging

are those egr valves?

ebay, and also check car-parts.com for used. 

Go to rock auto and get the NTK https://www.rockauto.com/en/catalog/mazda,2004,mx-5+miata,1.8l+l4,1426272,exhaust+&+emission,knock+/+detonation+sensor,5108

Try car-parts.com for interior body parts. Its a list of junk yards.

Have you looked at Amazon?

I have and they are fine to use. I usually stick with Moog but Mevotech is considered a strong second line.

Stock jumped pretty good after this. 🤑

What year is it? I would try to find a Mitsubishi parts website with diagrams to identify the part. 

On the intake is for brakes if needed and then I think you have a temp sending unit on the right and then on the right side is coolant passage. Who makes this manifold? Often you can find instructions like https://www.jegs.com/InstallationInstructions/300/350/350-75164.pdf

You might want to check carid.com, I just ordered from them and they were cheaper than rockauto on walker exhaust.