I'd bet some sort of block heater, like they use in Alaska and the arctic,
could be used with a timer, maybe add a couple of heat lamps
on the rest of the engine, if you knew you were riding at 6AM,
turn the block heater and lights on at 5am so the oil and engine
are toasty warm when you start out.
That's pretty amazing that that much water can accumulate in the oil just from moisture in the air.
It can't. Any hydro-carbon fuel that burns clean in air becomes out steam and CO2, so
crankcase blow-by gasses that get past the rings are made substantially steam.
For every pound of fuel burned, you get about a pound and a third of water,
as a combustion product, in the exhaust gas. No way to prevent it; it's right there
in the chemical equation. You only see it when the engine is cold, or the gas flows
over cold surfaces or into cold air, where the steam becomes liquid.