Im just up the road from you in Lawton. I have a 68 Trade Wind that I rebuilt the folding table for this spring. Not sure if that is a credenza table (I dont know foo foo design terms- I still havent figured out what a jallousy is either).
The orignal table on mine was a stryrofoam core with a linolum shell. It has a hinge to fold out to double the size and a clever hinge/slide do hicky to retract against the wall when not needed.
This spring I decided to replace the old table with a new one. I made the surface out of oak venere ply and put a wood strip trim surround on it (not hip to carpentry terms either). I have been verry pleased so far you can see it and the new floor here
and the whole thread about my restoration to date here
. If you want to come up to Lawton and see it sometime I would love to have you. Good luck, and welcome to the forums.