Congrats on the investment Josh, great mic there. We’ve got 2 - one that we use as our main mic in our vocal booth, and one attached to the desk where I (Tom) do all of our editing and processing, as well as video work. It’s overkill, but I like having a mic here to quickly lay down a rough recording for things like videos, and I love having uniformity across both our mics.
Fun Fact - Did you know that the original Shure SM7 (basically looks almost identical to the SM7B, but because it’s vintage it’s worth a buttload more money) was used to record Michael Jackson’s Thriller album? I always figured if the mic is good enough for MJ/Quincy Jones, it’s probably good enough to record a company voicemail message.
Regarding preamps - what do you have at the moment? I bought a Universal Audio Apollo Twin for us a few years back and honestly, it was the best investment I ever made (but I do also produce and sell music, so it was a smart investment beyond just voice over). UA create incredibly accurate recreations of classic preamps, like the SSL E Channel strip, the Manley VoxBox etc, and they all sound amazing in their own unique ways. I own a few of those, and have played about with a bunch, but for VO work I find that they ‘colour’ the sound a bit too much for my taste. I actually just use the onboard preamps, so the Scarlett that you mention would work. Keep in mind, your goal is to record the cleanest recording that you can, and you can worry about everything else in post. The Fethead is absolutely essential, and works just as well as a Cloud Lifter, for half the price.
Honestly, the setup you mention sounds immense, and once you’ve got your post processing how you like it, the SM7B is such a tank of a mic, it’ll never let you down. The only other thing to think about is room acoustics. The SM7B is great because it picks up less of the room around you, but if you don’t have acoustic treatment, it will still sound like you’re in a far-from-ideal room. Do you have a booth?
Also, not to throw you off, but the other mic we came very close to buying, which I believe is a similar cost, is the Neumann TLM102 - I know a few people who use it and have nothing but good things to say about it. A very different mic to the SM7B, but a worthy mic nonetheless.
(Sorry, I’ll stop geeking out now)