Outstanding !
I, myself, have ambitious plan to modify Tiger I. and if You don't mind, I'd like to give some "fantasy" suggestions
since armor is expensive and (in german perspective) difficult and sophisticated battle complex, also thin in numbers, costly to produce... it should be well "kept". meaning, in my vision, those advanced panzers should work close together with infantry, "strumgruppen". therefore i suggest to add some adjustments for infantry which accompanies this panzer. like ladder to rear, for easy embarking, sockets for infantry weapons to the back of turret, panzerfausts. covers for ventilation, some hangers etc.
i hope that You see what I mean, despite my maybe confusing explanation.
good luck with build.