Don,
I've done a little more digging into the Lebanese AF.
The ever-useful Scramble site gives the current state of play:
http://www.scramble.nl/lb.htm
as you can see, the cupboard is pretty bare.
A few suggestions:
Mirage III (No.s 185/186). ISD should be circa 1970: order was placed for these a/c in 1968. OSD more likely to be 1990 - a/c sold to Pakistan in 2000 for spares recovery.
Hunter (Nos. 180/181) - ISD should be circa 1960, with OSD circa 1985. (Wiki has last combat sortie in September '83 -
http://en.wikipedia.org/wiki/Lebanese_Air_Force ) Back into service 11/2008
SM79 (No. 550) - OSD of 1974 very optimistic - suggest 1960 (Replaced by Vampires).
I hope this is of some use/interest.