Thanks Edward!
I think I had noticed that on Wikipedia (another 'reliable' resource
) it says that 248 Ausf. D were produced and only 42 Ausf. B, and given the difficulty of finding a specific Ausf. B miniature, I would be surprised if the 7th Panzer's PzIVs were Bs.
As for the FAO, I'm just looking for a suitable miniature to represent it from Pendraken's catalogue that differentiates it from the regular HQs, who are each a mix of BEF officer figures and Humber staff cars.
Thank you for the info!