honestly, the paint didn't cost all that much - find yourself a really old-style auto painter and have him/her consult with their favorite supplier/mixer
in our case, it was a hole-in-the-wall auto paint store attached to a body and restoration shop for vintage vehicles - and we brought the...
and this post has how it looked right after the new paint: the DSRTRDR is getting some TLC . . . - https://forum.ih8mud.com/threads/the-dsrtrdr-is-getting-some-tlc.749124/page-39#post-9850358
when the rear of my truck was painted, we tried to match the patina front that wasn't touched - the new paint abuts the old at the seam in the door sills driver and passenger front
as far as matching: patina paint is dull, so you need a lot of flattener in the new paint - even the original...