My friends last boat, a Freedom 28, had all the traveler lines from the top mounted traveler run aft to the cockpit. It was a nice set up and included three attachment points to the boom with the main sheet run forward and then aft to a clutch. I'd advise you to plan it out thoroughly and to talk to a rigger about the boom. Three attachment points may be a good way to distribute the load. Remember, you may need larger tackle to sheet at mid-boom.