But not the mobility or the armor, IIRC.
Take a Panther G's speed and armor, give it the 88 L'71. You have the Jagdpanther.
And if I had to guess, here's what we'd be looking at:
Hetzer: 0-2 perks
The reason for a perk cost is that it had 120mm LOS thickness on the frontal armor, and will be damn near invisible. Tiny, tiny little thing for an AFV; it has damn near the same dimensions as our M3 halftrack, but a better silhouette. Pictures:
Jagdpanzer IV: 5-10 perks. IIRC, about 100mm LOS thickness for this particular version, plus the L/70.
Jagdpanther: 25-50 perks. Good armor, great mobility, and a gun literally without equal during WWII.