Tankman,
Apparently the 80mm (8 cm) Granatwerfer 34 was as prevalent in the German arsenal as the Eighty-Eight, Kar98, and the Stuka. Which means that they were employed on just about every front with every infantry regiment. So, yeah, go for it!
My understanding is the Carpathian Crosses are also working on a truly mobile and usable mortar, so you might want to check in with them.
Divinehammer created firing mortars on his Rakowice Outpost map using triggers and scripts. I've been playing around with his setup to try to make them work on my Altdamm 1945 map. I'll post some video later of my results...
EDIT: Here's the link. I'm too cheap to pay for the full version of GameCam, so there's no sound.
EDIT#2: For some reason the video looks really crappy on YouTube. Too pixelated!