You can give it a try. Animals are unpredictable! I'd be available to intervene if necessary.
You ARE talking about after an appropriate quarantine period, right?
I'm with Linda. If they ever started to interfere with walking, like he was cutting himself, I'd worry about trimming. I've never had a rooster that reached that point yet, so I've never bothered. I figure God gave him those spurs for...
I'd just put them in and leave them alone for a while. Let them settle in without stressing them more by crowding them. Keep an eye on them but keep your distance.
Roosters just plain aren't pets. If you can live with him not being friendly and a pet, give it a try. De-spurring him isn't going to change his behavior, though, and they can still do some impressive damage with just the...