Welcome to the forum from Arizona.
I see that you have been researching repainting and restoring your Coleman finds, but let me say that a good option might be to first, to consider,
Disassemble and clean all components completely.
polish the fount with Mother’s POLISH, or your favorite auto polish.
check the function of all the parts for cracks, wear, etc.
replace any broken or damaged parts.
fill the lantern with fresh fuel a new mantle and light it up.
take a few pictures of the project and post them to this forum, (we love pics, Especially lit).
this will give you a “dress rehearsal” so-to-speak for assembly.
Bond with your original project for the evening.
THEN, in the morning, if you are dissatisfied with it and you can’t stand it’s scratches, dents, it’s history, and the previous life it has led, then by all means, take it back apart and grab the sandpaper, but Remember, It is only original once, and can never come back. Your Original CAN be restored, but once Restored it’s a one-way ride.