Congratulations on your marriage! What a nice motivation for starting a new life together. Quitting together can be a great bonding experience and you have each other for support.
I never thought I'd be able to quit after smoking 3-4 packs a day and having been a smoker for 42 years, but as you can see, anything is possible. This last attempt was my third time trying to quit via vaping and it finally stuck. This time I started with Evods and a VV/VW mod and then settled on Protanks until recently when I switched to a KFL+ and building my own coils (try the rayon wick, it's amazing!). It doesn't get much better to me.
I continued to be a dual 1 pack a day user for 4 months until I finally found the thing that took me over the hump into vaping exclusively. Believe it or not, it was a cigalike! I couldn't fight the urge to smoke around the smokers at work until I got an eRoll. It felt so much like smoking that I was able to use it at work and avoid actual cigarettes. I put up my quit smoking banner soon after and I was so proud of myself I didn't want to mess it up.

Even though I very rarely use my eRoll anymore (even at work) I credit it with my eventual success.
It's great to have a plan, and a backup plan. You never know what's going to work until you try it. Good luck to you and your wife, and keep us updated on your progress.