Apparently, Martin also had a company called Marginal Airmotive operating out of Carsbad - Palomar. Here is a photo I found on Flickr shot on Oct. 11, 1978:

According to an interview in Air Classics many years ago he was an ex- WWII Marine Corps gunner. He and a friend (R.A. Wardell) then bought a dozen surplus P-38s for onwards sale. Kevin Grantham's P-38 book relates that the ones that went to Honduras were part of the Martin/ Wardell cache. One of them, ex- FAH 504 44-26961 N38DH can be seen in the back of this photo being cared for by Martin 30+ years after he sold it.
P-80 is 47-215. Thought to be at Kulis ANGB in Anchorage, AK although a P-80 painted as 47-0215 is preserved at McConnell AFB in KS. This from Goodall's directory.
The A-36A is 42-83731 N251A. It first flew in 1982. I remember photos of it in Air Classics in the same primer as in these photos.
T J