Herr Dr. Professor, maybe this information will help if other ESC have delays. We developed an additonal board combined with the HL TK-7.0 for the servo steering of the front axle and it works plug-and-play:
https://www.fertigungswerk16.at/rc-elek ... ahrregler/
The Sd.Kfz. 251/22 Pakwagen uses this combination, so there is a FO module incl. gun and machine gun functions.
The Sd.Kfz. 251/1 Ausf. B in the 2nd Video still uses the SGS Electronics but will be exchanged, because driving the Halftrack isn't so smooth possible.