I actually don't use JSGME myself (I do so much modding it's best that I don't get lazy and keep track of all the individual file changes myself) - what sort of format would I have to use for that?
Otherwise, all the mod contains is a small text file (.eqp) for each unit that would add a spotlight to all the loadouts of planes, and also to the merchants. Much easier than it seems.
I'll try to post it later today