Hey Rick,
Thanks for the kind words of encouragement. As I stated earlier I dont want to go into too much detail as this whole project will be in an upcoming issue of AFV modeler. But I will tell you the decals are my own
made in photoshop. Also the Formations final drive assembly im afraid does not fix the drive sprocket height problem and has to be fixed. I think this conversion is based on the Tamiya 3 piece FD assembly

As for the co driver periscope, I love the attention that it brings

I stand by my assertion though that I have seen open ones.
Alan thanks for the kind words as well. Cheers,
Bryan