I bought two of these at Warfare, an assortment of very useful pieces.
While assembling one of your Panzer III kits for use by DAK I came across something that might be included in a subsequent set, water bottles. On page 19 of the Osprey book there is a photo of a Panzer III with a large number of water bottles hanging on the turret stowage box. I used a couple of Wargames Factory water bottles because that was all I had to hand, I will see if I can borrow some from the BA sprues as well.
Since the photograph was taken I have added some additional stowage, though one small box (an HO scale item) fouls the turret. The additional stowage includes hiding what is supporting the bucket.
Small ammo boxes and similar would be useful, the limited clearances on this tank limits what you can add (I assembled an oil drum but there was no where to put it, the only space was too close to the exhaust).
Additional (or replacement) tools would be nice.
Now to add some of these to the Crusader.