RE: JS 7 Heavy Tank
Israel captured a bunch of them during the Yom Kippur War and there are a couple at Latrun. There is also a 122mm version. Both were a death trap for the crews as the huge turret had very little armor and a nice, slow, flat target. If you want to build one, I have conversion sequence photos if that would help. It's a neat looking tank and everyone is amazed at the long gun tube. NOT a tank you'd want for urban combat. or in a wooded area.[:'(] Opposing tanks would also be M-51 and Magach M-48A5s.
I use mine for an IDF Target...has a high volume smoker with one hole plugged and a tube leading into the turret. Triggered by a micro switch to activate when the gun is over the light. I also have a photo of the T-100 with the original crew.