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Yep, that is pretty much it.  Can't say that I would personally recommend either of the hosts that you mention, but the principal is right.  You'd probably need to create CNAME and an A record.

Youtube is a huge site and is probably crawled daily, I would imagine if your link is not showing up after several months then there must be something wrong on your side. Would you care to share the Youtube channel, I understand if you don't want to but just trying to help.

In the past i have seen conanicals take up to 5-6 weeks. My only other advice is to monitor the amount of indexed queries you have in Google. If you know you started with 100+ and over the past three weeks it has dropped down to 50, then it is slowly taking affect (once again, using the site search). If you see the opposite and you notice no change, then perhaps the tag is still incorrect or some other issue? I can't promise that all of the queried URLs will become un-indexed but the most important thing is the base page ranks the highest when searching.

No problem, thanks for the input. I've read the post which actually created some of my questions originally.