Good luck with it. I've been out of domaining for a while. Is the name intended for use outside UK/US? As it stands, I think a .com.co name would be a complete nightmare. You would be forever explaining to people, if you told them the name by mouth, that it isn't a .com it's a .com.co!! I don't imagine anyone would remember the name.
Just did a very quick search. First name I tried is available: TheHomeInn.com and it's a .com.