Maybe this will help
Main halyard should go all the way to the masthead and back, plus some slack for handling and to cut off a couple of feet of the shackle end every few years depending on use) so it doesn't get a flat spot or chafe from the masthead sheaves.The mast is a little over 28 ft from base to head. So twice that is 56 ft plus 10 ft for handling, eye splices and knots plus a little extra for cutting off at the shackle end and you're looking at about 70 ft. Add at least 8 ft more if you plan to run the halyard back to the cockpit.For jib sheets, measure from the winch to the forestay fitting on the foredeck (this is about where the end of the sheet will be when the sail is on the deck - about 18 ft) then add 10 to 12 feet for handling/trimming over the winch, Finally multiply by two. That works out to about 60 feet total.It may sound like a lot of line but I'm a firm believer in the concept that a line that's two feet too long is a nuisance but a line that's two feet too short is useless. Good luck.PeterH23 "Raven"