So I am kind of feeling like its about that time in my life.

Congrats mate! It's a big plunge, but as long as both of you know the score, and it seems pretty obvious you do! Then go for it and never look back!
One thing I've learned through my parents failed relationship and some of my own! ALWAYS, ALWAYS do it for yourselves. No matter the circumstances, never let others hold any sway on your marriage. The 2 of you should have this union to join as 1 single unit. Just my .02 ;)