Re: Your thoughts on this setup…
I think you’re current setup should work for what you need to do. You may need to add a couple plugins though.
You said these were the trouble items…
site.com > WPRemix theme.
user.site.com > BuddyPress Home theme – but no widgets setup (I thought that that should have gone to either the user’s profile or the user’s blog?).
My set up is similar.
site.com > Using main BP theme
user.site.com > Using a default theme I specified using a plugin called “New Blog Defaults” that allows me to set the default theme for any blog that’s created.
Now, the difference might be that my version of user.site.com is actually a user blog address, not just a user name. Does the user your trying access have a blog domain as well? Or just a user (profile) name?
If it’s just a profile name, then the url would be http://site.com/members/membername/