So you need an extra additonal Pak40, some additional screcks, just to counter a single KV1, feels balanced?
Try playing against it with a single Pak, some Grens and a P4 or even 2 P4, a usual unit combination of Ostheer in that timeslot. See how your P4 struggle.
Big cats do not arrived yet.
TBH, that tank can't do shit to big cats.
How in gods name does 2 p4 not deal with KV1. It's not like it's fast enough to not get flanked. I mean a single at gun/su85/Jackson won't hold upto a Panther either.