I have a pic of the F-1's with mostly the BM centreline tanks.Then I have of F-1's with wing tanks that are painted plain or with cammo, even a F-1 with one BM and one painted wingtank.....so your choises are not limited!
As far as I know, the F-1AZ (ground attack) mostly carried the Centreline belly tank as the hardpoints on the wings were needed for the bombs, The SAAF did use the "14 bomb config" but this made the planes VERY heavy with Africa's Hot and High climate.
After the bush war, the F-1's were repainted in the low vis brown/green and blue-grey sceeme or in the 3 tone grey "ghost" sceeme for the CZ's
If you are going with the "yellow/green" sceeme, remember on the F-1's it was a hard masked edge.
Theuns