When you disable port 80, you can't just type yourname.com. You have to manually type HTTPS*://yourname.com. Why didn't you use the free one with SBS-E? They even give you a free SSL Certificate.

What I do is use a link shortner on top since typing https://yourname.remotewebaccess.com can get annoying. It ends up being something like bit.ly/sluthra or something like that for quick access. https://bitly.com/

With SBS Standard you definitely need your own domain name due to Exchange and SharePoint.