I have no problem with spending my non-existing free time. But some progress happened anyway. Painted the ammo boxes and made some experiments with weathering. I decided to paint some grey boxes too just to be a little more interesting when put in the fighting compartment. The Griffon box with open top (though quite slow to build its 24 parts) looks very nice when painted, maybe I buy some more...
The original ones look like this (found on missing-lynx.com):