Hi Tony brooks
I cannot reply to your individual advice but I thank you the site is
https://sideshift.com/contact/
it’s retro fit looks a neat idea
I know others have posted that you do not need a thruster and yes that is true, however having one is no disadvantage, I see it as I don’t need a reversing aid on my car but it’s easier with it or power steering or even an automatic gear box, or a washing machine, we do not need these aids but life is easier with them and as I am a total novice to boating I hope others can see why I am seeking advice,