I`ve seen images with both variants. Striped antennas in the beginning and dark green later in the deployment.
In 1/72 I would wrap around a EZ-Line oder very fine fishing line instead of masking tape.
All of the Leclercs in Lebanon definitely did not have the striped antennas. I built a UNIFIL Leclerc several years ago and all my references of the initial deployment showed solid green antennas.
In the book "Landing Zone Lebanon by Moustafa El-Assad" you can find several images which show striped antennas ;-)
For my UN Leclerc build with striped antennas (which I did in 2010) I used reference images taken by Patrick Winnepenninckx. You can find these images also in the modelling magazine Abrams Squad No.8, page 71
Another image with striped antennas http://i.auto-bild.de/ir_img/1/0/1/5/0/3/1/LeClerc-729x486-1d53505b9cd05032.jpg