How early is early?
If you mean one of the first 50 Tunisian Tigers then you have a lot of modifications to do that you won't find in any dealer upgrades,
Rear Fenders, Front fenders, Feifal Air Cleaners (two separate drums per unit rather than the later intergrated units,) Exhaust shrouds, Front Turret Mantlet, Two Pistol Ports on the Turret, Turret box different from the later pattern, similar to the PZ3/4, Tow ropes either reversed with the eyelets over the engine grills or if kept in the regular position then the eyelet on the rope end nearest the side fender should be ahead of the inside eyelet,
BUT, and here is the good news, NO ZIMMERITT!!! indeed Zimmeritt was first fitted in July 1943 and discontinued when someone in an office in Berlin realised that Anti-Magnetic mine coating (zimmeritt) was pointless, as the only army in the European Theatre using Magnetic Mines was the GERMAN ARMY!!! DOHHH.
Shaun.