Hi Johnathan, it sounds to me like you have an aptitude to become a Gadgetman, I'd say get the PL kit from Collette. Find a junk throttle body (called TB around here.) Practice on it , maybe try a lawnmower carb. w/ the small bit first. IF there are any mower shops around you can ask them if they have any junk carbs they might give you. That's what Ron always advised, it's what I did.
You need a PL kit, a decent Dremel like the model 4000, and a flex shaft attachment. Avoid cheapo Dremel knock-offs. Remember to keep the bit cool, dip in light oil or water after each cut, and avoid excess tool speed. A small vice is very handy, I have a recommendation for that too.
Then ask Q/A on here, and post pics of your first efforts as well, don't be worried 'bout criticism, we can critique you to help you along. I'd wait on Grooving the carb 'till you know the basics, instead invest your time to learn the techniques first. The difference between buying a fish, and learning how to catch 'em!
Welcome to Gadgetman Land, there are some good folks here, and a LOT of knowledge in the Forum Index area...(hint)
Tracy G