Aussie is absolutely right about the Tow ropes and as to the colour of the Turret numbers that has been an argument since long before I joined the Forum,
All the decals say red core and white outer, Military practise says black core and white outer, In truth we don't get much of a choice because all the decals of that campaign show red core white outer. I favour Military good practice but my Tunisian Tiger 1 has the Peddinghaus Red core and White edge
The Exhaust shrouds are quite different from the semi-circular ones on the later Tiger 1 and the rear mud wings/Fenders are again completely different I am not aware of the exhaust shrouds or the Rear fenders being available so you have to scratch build them yourself, You can buy the double pot Air cleaners, they were part of Tamiya's Static Tiger 1 early and the Sprue that contains them can be bought from "AXELLS",
The particular sprue you are after is the "K" sprue,
http://www.axels-modellbau-shop.de
The Main Gun Mantlet is different from the later Tiger which you can adapt but the material is very thin and may need a lot of filler but if you buy the Air cleaner sprue the modified one is also there,
Other detail such as the Starting Handle being located on the bottom of the rear panel can be masked by the early winch and spare tracks, these latter two items were soon removed and are rarely seen in photographs of the period.
But the most obvious difference is the Stowage Box,
The first Tiger 1s had no external stowage and then they had a pair of storage pods ,one each side of the Turret and then they were removed and replaced by adapted Panzer 111 rear stowage boxes which were then expanded to fill the whole curve of the back of the turret before settling for the Tiger 1 stowage box that remained standard from then on.
The different Stowage modifications can be got from---
http://www.an-bri-rc-modellbau-de
Good luck,
I will follow your choice with interest.
Shaun.