Thanks for that Ricky. I have since looked into this and discovered that the tank did exist, the old turret on the new steel wheel chassis. I have read a little different about it though! I read that the Hybrid Tigers were actually left over from the Sturm Tiger project and so they decided to match them up with six old turrets that were left laying around.
in regards to the Elephant P: I think only one saw combat, and I have seen that Dragon make a Kit of it, so will have to get that to make.
By the way, those who advised on the Zimmerit? Great stuff. I am close to finishing my late tiger from the 505th heavy tank battalion Tiger 312 and have done the zimmerit. Will post pics of it soon!