hello, have an old irwin 30 that the topping lift wire cable ends about 2.5 feet above the boom end. i am using rope to adjust the boom and secure it to the backstay when docked. is there a simple device i can rig up using a couple of sheaves to do this prettier. also, have two sheaves on the rear of boom for reefing the two aft eyelets on the main but nothing on the forward boom for the luff reefing eyelets. i want to change the setup to something where one doesnt have to leave the cockpit to reef. whats a good way to do this with minimum modifications? thanks