Detailing exterior to shine

[JJHstang]

My 71 red Mach 1 was painted approximately 6 years ago. I have owned for 4 years. I keep covered in the garage and have only washed it once (have some leaks). My usual maintenance is dusting it off with. California duster and then using a detailing spray. Want to get it to shine and look brighter.
I feel it could use a wash, clay bar, and someone told me to use ceramic spray to protect and shine.
I know there are posts but they appear older an ideas and products change.
What are your thoughts? Don’t want to create a problem.

First pic with hood open is 2 weeks ago, the 2nd pic is 2 yrs ago.

 

[Potomus Pete]

I would give it the full treatment. Tape off stripes, and whatever with blue tape. Then a mild 3M, or McGuires rubbing compound. Towel it off, and then use the wax of your choice. Maybe two coats wax. Do it in a weekend, and then never do it again. Just go real easy if your worried. If you wanted too you could hand wax, but after all that time the rubbing compound is what you really want. Get that thing looking show room shine.

 

[JJHstang]

Thank you especially about the stripes.