A supporting vang will deal with that issue, something as simple as a boomkicker.
We have everything but the reef tack and clew run aft, (no topping lift) and our furling line and pole downhaul run through
our SS handrails - a clever 'Nicholson' touch. Don't know why more builders don't do that.
Given that our reef lines are still dealt with at the gooseneck it would probably make more sense to leave the main halyard on the mast too, but doublehanded it's manageable as is..