Firstly, good on you for getting all those licenses and permits. You're a good, honest citizen and that deserves some recognition... but truth be told, none of that means shit here.
Upfront you're looking at spending $300, then you also have to qualify on a range. IDK where you go for that and I doubt you'll be able to get around doing it outside the state.
The likelihood is you'll be denied first, then it'll be up to you to put time and effort into doing the appeal, which you'll more than likely pass.
It's a tremendous amount of bullshit and why it costs nothing and requires nothing to carry a gun in New Hampshire, but it costs nearly a weeks pay in Rhode Island to do the same thing just shows how everything you want to do here is a privilege and not a right that requires permission by a govt agent before you do it.
Personally, unless you have a reason to be in Rhode Island (family, work, etc), there's no reason to ever step foot here or spend a dollar here. If you're planning a vacation or something, skip Southern New England and go straight to New Hampshire and Maine.