We run about 50-75 White Texas Dall sheep. Hair breed, and we raise them for the horns that the rams have to sell to hunting preserves. Any that don't make the cut as lambs as far as the horn development goes, go to the lamb market. Used to have horned dorsets years ago but the wool market got so bad that we just couldn't justify the shearing costs. We like the horned sheep. That said.... the dorpers are very meaty, had a friend that raised them and we have discussed maybe adding a few but the biggest thing is fences that aren't good enough to keep them in on rented pastures. The Dall's are a semi wild breed and can be hard to handle although the ewes are tamer than the rams. That is the way they need to be since the rams will go on preserves to be shot and they don't need to be coming up to the hunters. The biggest problem we have is #1 - predators ...dogs, coyotes after the lambs. And dogs that have gotten in and run pregnant ewes and they abort. We use llamas for predator control. #2- worm load here as it is too moist an environment and although we are using more resistant females as breeders, there is still a problem with worms. #3 - foot rot. Again in part due to the wetter conditions as sheep do better in arid, dry conditions. And we are breeding the ones that tend to need less foot trimming and slowly getting rid of the ones that need alot of constant attention.
If you know a guy at work who does well with them, why not some sort of a partner deal? Learn from him and decide if you want to be bothered with them. Or even outright renting the land to him?