since a few months i've restarted builing models, but more seriously than 15 years ago

tomorrow i'm picking up a new kit.. it's the dragon/CHC 6468 Sd.Kfz.138 Ausf.M Marder III Initial Production w/Stadtgas
to be well prepared, i was lloking for info on this special armor, but appart from some review info there's not much i can find on the web..
maybe some of you can help me on this?
i only found 1 pic of it, and that was a scan someone made in b&w, so not very helpfull, appart from seeing what a cool tank it was..
all i know, that it's suppositely used as a drivingschool version of the initial Marder III, fueled with gas..
thanks for your help.. i'll post some shots tomorrow of the kit (which amazingly is in stock at my local hobbyshop, as are several other exclusive kits which are stated everywhere as sold out! i got to watch out, before i buy them all

and maybe some other extra's as almost all Aber, griffon, friul,... well.. all of the big brands.. are just on stock there..

also, i've seen that Aber doesn't have a PE kit for the Dragon kit, but apparantly Griffon has one, which is normally used for Dragon kit 6464 Marder III M initial
since that one is basicly as the one i'm planning to buy, will the griffon kit be good for it? also, is the griffon brass thick enough for scaling the correct with of the panzer armor? (i know on some kits, Griffon is too thin, so it loses realism.. )
so.. hope someone can help me a bit on this rare panzer jager..