Another easy way to do it is to put a log under each stern. When you solo right your mast now with your shrouds attached, the mast leans forward by gravity. Just jump down off the tramp with your forestay in hand and hook it up to the bridles. I've done it this way many times but be careful if you've raked your mast back alot. Just be careful, mine's max raked and I still do it this way if there's nobody around to hold the mast upright.