This is all
too cool! One suggestion is to continue the shell 'brake' strips over the former main gun location.
Your RWS puts me in mind of the 20 mm
automatkanon m/45B AA turret mounted above the commander's cupola on the Strv S1 prototype. AFAIK, the final drive on that first prototype was electric. That anticipates the SEP-T test vehicle of 30+ years late ... and raises an interesting possibility.
What if your recce S-tank was a diesel-electric hybrid? Ditch the thirsty Boeing turbine and anemic R-R multi-fuel for paired Volvo or Scania diesels powering electric drive