Hope to see the results of the servo controller in action--but to be realistic (and I may be setting an impossible standard here) the turrets as massive and heavy as they are in the 1/1 Bismarck; they have to move sloooowly.
Better than linkages and ridiculous 'move all the turrets at once' setups, this holds great promise.
As far as paint removal goes, I obtained some half-built kits myself with the resultant and typically thickly applied paint to deal with. I was NOT going to sand all that paint off and possibly ruin or alter the underlying plastic. Solution:
Bought a bin to soak the hull in (model tugboat) one side at a time and after an hour or so the paint had turned to mush and could be removed entirely by scrubbing with a toothbrush and rinsed with more degreaser. When done I rinsed the hull under tap water. The styrene was not harmed in any way and I gambled a few times to see if a longer soak would harm it but no such thing occurred. Just an option to consider... for smaller kits!