Hallo Holger
The "bow
truster" electric outboard is a good solution. When the main
engine backs up also a good emergency solution.? One of the
bigger fishing boat e-outboards will do till? 4-5 bft. Can now also be use on salt water are powerful and relative cheap. Example ZEBCO R-VX54. Kostet +/- 200,- Euro. Amazon has them also (ich hasse den Laden). You can remove the top electric and use it as a remote control. With battery cabel etc ca. € 350,-. It is worth to do it because of the possibility when the main engine packs-up.
Thanks for the photos by the way. A good solution
Cheers
Bernd