VKB-SIM

I own a Gunfighter of the first hour, meanwhile upgraded to the standard MK III. I have all the available grips, even a KG12 Gen.2 with a special extension from Rev.1 to Rev.2.
According to the description for the new Black Box III, it can recognise the grips automatically and you no longer have to reflash them.
The VKB North America website states that the Black Box III is also compatible with the Gunfighter Base MK II/MK III.

Is this correct or what do I have to do or buy so that the Black Box III works with my setting?

Translated with DeepL.com (free version)

Black Box MKI is orange, Black Box MKII and MKIII are black. Both MKII and MKIII would accept reflashing with a multidevice/unified firmware which would allow you to swap grips without reflashing.
So, if you already have a MKII you don't have to buy the MKIII specifically for this.

Thank you for your answer.
Unfortunately, I have the Orange Black Box I.
I seem to have missed the fact that you can reflash with the MK II via multidevice/unified firmware.

The only question now is, how do I get a Black Box MKII/III quickly?