Sorry for the delay, 944.

Yes, you have a 56004. It can be tested on 6 volts just fine, but make sure you only run the flash on 3 volts (the supplied 2x C cell clip, or suitable replacement) It is the first issue of the King Tiger with a Henschel turret, and all the other Tiger kits are based on this initial design with mods beeing done later for the others.

It CAN be converted to DMD gearboxes, but its not worth upgrading it to full MF operation due to separate component expenses. Does it have the clunky turret traverse gearbox in the middle of the chassis? If not, it can still be bought, item 53400 , about $40 bucks.

My first tank was a 56004, and had a few of them go through my hands in the over twenty years since then.

The only obvious suggestion I'd say is if you're going to use stock 7.2 packs in it, go get one of the integy 55 turn lathe motors (INT SCM 5501) and put that in place instead of the stock 540. It'll slow the tank down to almost perfect scale speed, and give you HUGE amounts of torque and climb ability.

Hope that helps.