You can
http://fowlists.blogspot.com.au/ to create lists.
As for the stuff you have; Most of it is fine. The only thing that you cannot reasonably proxy is the Jagdpanther.
Pz IV
Hs are around, with or without shurtzen. Without skirts they can serve as either G or F2.
The Panthers are fine. They are actually Ds in Kursk, but that is minor details
The 251D is fine. It is nearly identical to
th C, with the exception of the rear doors. Doesn't really matter.
21cm nebs aren't around, but the 15cm is.
Other then that everything looks fine. Grenadiers should be without faust