Good to hear. Come up with a plan and include a list of parts before you purchase anything. It will help you stick to the plan. And that will save a lot of money in the long run.
The microsquirt is a smaller version of the megasquirt controller. There are a few versions. If you go mpfi it’s not a bad way to go, but not if you are just using it for timing control. That would be a waste. I suggest you decide first if you are going to build an mpfi engine or a blow through carb’d engine. That has a lot to do with what parts you’ll need and how much money you’re going to spend.