Hi, Larry! Did ya see the original post I bumped up for ya? Kinda described it there.
Here it is in more detail:
Let's see here...what did I do...(this model is 5 years old!)
1. Used the Rubio aluminum 90mm bore evacuator-less barrel in conjunction with a chopped muzzle brake from the kit.
2. Fabricated and added all the studs for the now-removed storage bin on the rear of the turret bustle.
3. Scratchbuilt the rangefinder covers you see dangling from the rails on the turret sides
4. Scratchbuilt that weird tube assembly you see protruding from the ventilator cover on the rear of the turret roof. (what is THAT supposed to be, anyway???)
5. Removed all traces of installed tools and replaced with PE parts to represent all the empty clamps and holders (Eduard's M-46 PE set), as well as added some Hessler-specific items from the PE spares box (some rack-like items on the left side of the turret)
6. Scoured the countryside for decals to recreate the "R-01" markings.
7. Made looong antennae and added that cute little blue, white, and red flag Hessler had on the tallest of the two.
8. Scratchbuilt pieces for and otherwise modified the gunless 50 cal mount next to the commander's cupola.
9. Added a wire and metal tow cable to the hull rear.
10. Painted the whole shebang Tamiya German Gray of varying shades and gradations, applied even to the rubber portions of the road wheels.
11. All other PE and the drilling out of the hull machinegun are not Hessler-specific, but they do help make a nice model.
12. Added one rather un-Robert Shawish Tamiya German figure (the uniform and added headphones with wires is right on, though!).
I reckon that's about all you need to do to convert a stock Italeri M-47 into an accurate representation of "Hessler's King Tiger R-01" as it appears in the film.
Now, if I'd only spent more time sanding parting lines and ejector pin marks...