Ya got it goin on Mr Chef, nice PzIII
I dont have an actual PzIII gun tank in my collection, always used them for other mischief !
Would love to do a late version with full Schurzen & the long '50.
I like the crusties on the lower hull behind the suspension. I have tried that with AK and Vallejo "mud" of various sorts, but it smooths out and takes a millennium to dry.
About those turret hatches, you can get metal ones which can be open/closed.
But, you also could take an entire Panzer IV turret body, their hatches can be opened.
Turrets P3 and P4 are the same.
That‘s what I am going to do on my Panzer III project.