when i got a $2000 quote for a 'mast up ' winter cover in 1995, i bought a sailrite sewing machine for $300 and $300 of 'boat top' water proof permeable fabric at $10 a yard, plus special thread and a grommet setter and grommets. it took me a week to sew a 2 - part cover. my cover had 2 sets of cloth strips that wrapped around the mast , sets of ties to tie the cloths together at the mast, and more ties to attach it to the bow and stern rails. 2 sets of wooden 2x4 s supported it tent-like . when we sold the boat 20 years later the cover was still in great shape. go to a tent maker / canvas maker. they can do this job for a lot less than $3 K. if you need design suggestions PM me.
