I've smoked on and off since I was a young kid, switched to chew in 2012, and since, I've literally had a (large) packed lip 24/7... I even dipped in my sleep.
I switched to vaping about a month ago. So far so good. My advice is to find a quality vape, tank/coil for flavor, and start off with a nicotine content of at least 6 - higher if you are still craving more nicotine... Most local places will increase the nicotine content of your juice no problem.
Geekvape makes a great product. I went with the Aegis mini kit, cerberus tank. You might prefer a dual battery, like the Legend.
Eta: I knew I had to quit chewing, when I realized the damage it had been causing to my gums. And cold turkey wasn't working... I chewed small screws, wood, anything to ease it. Keep in mind you have that oral habit, so you'll still have habitual movements of that sort until you become accustomed to vaping and forget your chewing habits