Welcome to the site!
Pending verification from those more knowledgeable than me of being able to attain the LTCHs....
Both you AND your wife should get the Lifetime Unlimited LTCH.
Going to the range will not make the application process more difficult.
And I *strongly* encourage you to go to the range more than once or twice a year. If someone breaks in to your home and you actually NEED to defend yourself, you should be sure you can actually handle the firearm you choose to own and that you'll actually hit the bad guy, not your wife, cat, dog, or random child in the neighborhood.
And take a training class or three.