Thanks all! No chains with this one, John, but I have some lying around somewhere, so fully intend to attach the customary links dangling off the front!
In the meantime, the PE kit has arrived. It appears to be mostly exterior (which I wish I had known before I used so much of the original parts), but the turret interior is there, and that was the main bit. There's also some replacement top hatches, and some details for the inside of the driver's hatches. It's a shame to waste a lot of it, but it's tailored for various different versions of the BT-7, so a lot isn't compatible with my model anyway.
Shell holders and the gun breach. The main bits!
And I've fashioned some 45mm shells from the end of cocktail sticks. Not perfect, but it should be fine for the limited amount of them viewable.
And some amendments to the inside of the driver's hatches:
Here they are attached to the model. A basic white primer has been used, but it has pooled a little in places. Maybe it's been on the shelf too long. I'll fix that before the paint goes on!
And some views of the interior from the turret.
Lastly, a start on one of the figures from
Miniart. It took a fair bit of putty and sanding to get the arms to look flush with the body. Eventually he'll have a map in one hand, gesturing to it with the other.