This sounds perfect!! I figure Amos might get a blow or two in early on ("oh this is why poor sweet Liem needs saving") before Sebastian would switch to full-on redirecting Amos' energies, which is a much better use of time for all of them regardless!

Whenever Amos comes to again Sebastian is gonna get both an apology and a massive heartfelt thanks, he's brilliant, very glad to have you on our side brother etc etc