My orphan lambs were very worthwhile. I bought 4 and got them from someone I knew at about 4-6 days old, paid £10 each (though he only asked for £5 each).
Because we have the dairy goats, we were producing milk anyway, so no milk costs. Fed until they were 12 weeks old. We did have to give one lamb antibiotics and vitamins as she had very weak legs at about 2 weeks old, but she recovered fine. The other female lamb died at about 14 weeks old- pasturella despite being vaccinated
They had a bit of sheep mix, but probably only about half a sack, so about £5. Cut and butcher was £73 for the three, and I did have my petrol to a, pick them up, b, take to abattoir, c, pick up the meat. But all in all, very reasonable. And needless to say, we are having roast lamb for lunch tomorrow.
Beth