A few days ago I saw a Kodacraft tank online and bought it. I have a number of these already but I was intrigued by the fact that this one seemed to have a cap which was a good match for the top. When it arrived today I saw that what I thought was a cap was really the gray top for a plastoc Kodak film canister. The tank is in good condition and came with two nice 36 exp. aprons but no weight.
I guess that with the apron and wright system, even with a proper cap, inversion would not be practical.
Some time ago I got a supply of 105mm wide Kodak Imagelink HQ film. I had some of it cut down to 120 and spooled up. The base is so thin it's just about impossible to get it onto a stainless steel reel or a Paterson reel. What works? A film apron.