So no-one that actually made a Stacking Mod comes here and shares their success and advice ?
I have tried about every way I can think of to do it, but it just will not work 
On top of that, I think I have spent more time ‘Waiting’ for the Mod Kit to come out of some random lockup, then actually trying to make the mod …
Oh well, that was a short lived adventure in modding … /sigh …