bottlefeed dock tail banding

I have 2, 4 week old wool lambs. They didn't get their tails docked. Will they be fine? Can I still band them? I read yoy can't do it after they are 1 week old. We are planing on keeping one for a Ram.

Our neighbor begged us to take these sweet ewe Dorper lambs off their hands as they’ve both been turned down by their mother and they didn’t have the time to bottlefeed them anymore. One is 3 weeks and one is 4 weeks and tails are not docked. I’d like to avoid taking them to the vet to get...