DSII WWII Variant Questions

I recently downloaded the WWII variant from Andy Cowell's web page &
wondered how much all the newly proposed options cost?	I guesses as
follows:

Very Slow Tracked Mobility: 10% of BVP (same as LMob Wheeled, Slow
Tracked
is 20%)
Half Tracked Mobility: 20% (same as Slow Tracked, between LMob & HMob
wheeled)

KEC weapon: 5-8? (don't have the ranges or validities with me so I'm
just
comparing to the other weapon system costs)

Very Light Artillery Ammo: ??

Has anyone used this variant?  How did it go?  Any suggestions for WWII
battles that would be appropriate for the fast & fluid style of DSII?
Thanks,
Nils