Keep it lowered and use a Kellet
If your only reason for raising the keel is the fear of wrapping the anchor rode, try a chum/kellet/sentinel/anchor angel. This is a weight lowered along the anchor rode using another line. They are designed to improve the holding power of the anchor but a side benefit is the prevention of tangles in the keel or rudder. There are commercially made ones (ex. Anchor Buddy). I use a 15 pound mushroom, a retrieval line and a caribiner in the eye bolt to clip over the anchor rode allowing it to slide. After setting the anchor I slacken the rode and attach the kellet. With the anchor slack I lower the kellet to the bottom then raise it a few feet but keep it well below the depth of the keel. Usually there is some breeze or current that pulls on the anchor but when things do go calm and the boat drifts about, the kellet keeps the rode straight down from the bow so that it can’t get wrapped around the keel or rudderS/V Anodyne