Bufflehead - I've done the Schurzen brackets several times before so I can post some pics of mine when I do them...
I also decided to change my build slightly - a little history necessary though...
The Jagdpanzer IV A/0 was designed as a driver training vehicle, lightened by using aluminum armor (and a dummy wooden gun on some examples) to make it easier for novice crews to handle the otherwise-ungainly vehicle. Towards the end of the war, a handful were pressed into service (obviously a desperate measure considering the amount of protection offered by aluminum)
One was used for sure by Panzer Lehr in Normandy (a unit assembled from the elite instructors of the training schools). At least three others were seen in late war combat photos.
The one I plan to build is a somewhat-hypothetical very late war vehicle used by Panzer Division Clausewitz (another ad-hoc unit with many training and experimental vehicles) It was originally "armed" with a dummy gun and was pressed into service less than a month before war's end, after production of the L/48 gun had ceased. Of course the wooden gun wouldn't do (duh), so it was armed with the L/70 gun of the later Jagdpanzers. I don't have a picture of this vehicle but I've heard such a conversion is described (in German) in some late-war documents regarding PD Clausewitz.
So, no real change, just I get to do the much-cooler long barrel