The screws and bolts holding the hardware to the deck would be the weak point I'm guessing@Project_Mayhem 1/4" Cable has a breaking strength of about 7000# I think you will be fine. Rig one end to the mast and the other to the topping lift, the outboard end would only be carrying 1/2 the load.
That’s a good question!.! Where’s my drink woman????? where is the fair maiden with your drink????