Charge controller wiring on same cable as electric winch

[WaldPinkler]

Sometimes I just can't think these things through.

I have a 12v system with 270ah lithium.

There's a nice airy cupboard where the electric winch is which would also be a good spot to install the solar controllers.

There's already a fused 12ft 6awg cable run from the main bus to the winch in that cupboard. I didn't wire this but I believe it's already too small. (Lewmar 44 winch). I don't know the current draw for this winch so I can't figure out correct cable sizing.

The other question is can I use this cable to also connect the charging circuit? (Wind gen + solar, perhaps 50amp max).

The way I see it, the winch will use any charging current plus excess needed from battery. It may affect the voltage sensing of the charge controllers if there's enough load voltage drop causing the charging cycle to reset. Maybe not a big issue.

Thoughts?