True... I didn't even realize that I posted the picture of the single Driver's vision block until you posted.
Rubicon could do like they did with the Hetzer... Provide a Small & Large Gun Collar, a single & 2 piece 88mm gun barrel,
and all 3 of the the Panther's Exhaust systems! That would cover most of the examples of the Jagdpanther. Hell, the only version Rubicon missed was the Swiss G13 Hetzer with the muzzle brake!
I already bought the Jagdpanther with the Large Gun Collar from Trenchworx, LLC, trying to fill gaps of missing vehicles. BUT I have always wanted the Jagdpanther with the small collar! AND YES! I'll buy at least 2 kits!
Achtung Panzer: The Panzerjager V Jagdpanther shows the different variations of the "old Girl!"
https://loadoutroom.com/11530/achtung-panzer-panzerjager-v-jagdpanther/Small collar with single & 2 piece 88mm; Single & double Driver's vision block with a mix of gun barrels with the Small Collar. The possibilities are endless!
I still like Peter Chamberlain's "Encyclopedia of German Tanks of World War Two." I'm on my 2d copy! An OLD but Great Reference!