I am unclear what you need opinions and advice about? If you are both happy and everything is going as you wish, what is causing you to ask for other people's opinions and advice?

I myself would get more time together, unless you are not expecting to ever be together 24/7. Living with someone full-time is quite different I think from having an online relationship. We can put up with people at a distance, don't have to put up with their being slobs when we're neatniks, for example (or vice versa) and don't know their expectations about being served by us (dinner must be on the table at 6:00 every night, oops!), all we have is words, not experience. It's easy to say "no matter what" when you haven't any/much experience with "what".

I'd get a whole lot of first-hand experience, live and see each other daily for a long (at least 6 months) period of time (no every other weekend), before I got engaged/married, if I ever plan to live with the person in that way in the future. If you are just going to have an on again/off again online marriage, that could be easy enough to do, you have already practiced it, why wait so long for the marriage?