I've been wondering for a long time how to make Scavenge Doc a more favourable doc but it had lots of flaws. Even the earlier Ostwinds don't seem to have been enough to attract ppl (runs into med tank).
The volks change is an interesting one and I'm curious to see how ppl play out with it and if armor-centric builds are more likely with the better sustain.
I think adding the SdKfz 250/7 Self-Propelled Mortar would make Scavenge Doc more interesting.