Panzer Löwe was designed but never built like a lot of other designs. P.1000 had some speculative designs from some engineers but your right they never any finished blueprints for that one.
Let me think about some possible lore.
Mean time an unusual tank that we could come across on other teams is the Großtraktor. Maybe old tank could be the old one our school used the Großtraktor and it's outside the front of the school ever since our schools last big win decades ago.
Isn't she...