What is your docking situation? Do you keep her in a slip with electric (the basis of this question is obvious)? Can you go forward into the slip (again obvious)?
Do you trail each time and keep her at home?
We would all like to help you spend your money, but it may be well spent. No more hauling gas, cranky, noisy, vibrating outboard. I think that you are in an ideal situation for electric propulsion whether it be inboard or outboard. Short motoring distances, daily access to shore power for charging. As far as the remote is concerned, it would be the same problem with a gas outboard, and I don't think small gas outboards come ready for remote hook up. In my experience, one of the benefits of an outboard is the ability to steer with it for close maneuvers like docking. So, you can get all the above-mentioned benefits plus super reliability with the Torqeedo and you can easily carry an extra battery for backup. I saw an Americat 22 under way with a Torqeedo and was surprised at how fast it was pushing that boat, and it's about 5000 lbs.
Don't wish to start a firestorm here, but the Tohatsu built 6hp would not be my choice of a gas outboard. As far as I know, Tohatsu also builds the small Mercury and Nissan motors. Had one and hated it. Added insulation to the underside of the cover and bent tight the forward cover hold down to eliminate some of the noise, better but still not good. Used an extra washer under the plastic finger nut to help hold the motor in a straight forward position, helped but not 100%. The vibration will always be there with this motor. Their two cylinder 9.9 is much smoother but as you mentioned there is a weight penalty. I would look for input on a Yamaha or Suzuki in the 6hp range from owners. I had a Suncat with an older Yamaha 4hp, and that motor was amazing for a single cylinder, quiet and smooth and always started even after sitting for a while.
My vote is electric, but it's your money. Best of luck which ever your choice.