It sounds as if your sheep are mature, and I'm not sure how well reshaping the hornset would be. When they are young, you can soften the horn with a blow torch, apparently, while being VERY careful not to burn the sheep, then reshape as it cools down. I would imagine you would have to repeat that several times. The old fashioned way was to apply a very hot turnip/neep/swede to the out of line horn, then manipulate it while hot and hold it til it cools.
I emphasise that I've never used either of these techniques. Because we breed breeding stock, misplaced horns go in the meat queue.
For the animal with a horn growing inwards towards his eye, if it's stayed static for several years, then it's extremely unlikely to reach his eye. For that situation we would crop the offending end of the horn, but obviously that's not something you would want.
Whatever method you choose, please remember that horns are sensitive, both directly and by pressure, and can be torn completely off. So think very carefully before you subject your boys to this.
Why not just accept that they have quirky horns, which adds to their charm