I have a Bavaria 34 too … and am planning to have a Bow Thruster fitted.
You are correct its a “fair distance from the bow” and you may also have a bow water-tank that dictates the Bow Thruster location. The installing dealer surveyed the installation today and when he sends me an estimate with thruster specification I will pass on the details. I think from memory the 60kgf was the correct product due to location and the long tunnel required.
My boat is in Poole Yacht Club – and I have seen the dealers work on other sailing yachts – for the want of a better expression … they look like factory installations.
Keep you posted