I used to be a Construcrtion Plant Fitter in the Army and fit gas and electric meters these days, I know about having cold wet hands! The condensation is an issue as you say, I will have to learn to manage that as best as I can. I was hoping to buy up an older boat and do it up as I go along but I just want to get on the water. And I will hopefully moor up in Sheffield city centre so will find a pub and poo in there! lol
I'd say just do what the anglers do, but that would be socially irresponsible!
"Modern", properly insulated boats with a solid fuel stove in the main cabin, hot-air heating and efficient ventilation are snug and dry, even in the depths of an icy winter. All you need is to be close to a water point and a good supply of propane gas bottles.
Of course, there are boats that are more like Das Boot, where you wake up to water running down the inside of the window panes, there's ice in your wellies and you get the feeling that you'll need to blow the tanks before you can go ashore...
Edit for pathos
but not for D'Artagnan, Athos or Aramis.
I'm just a bouncer, splatterers do it with more force.....