Update, tried richening up the new carb, never could get it to idle. Did a quick clean/ run through on the old carb and installed it, changed the fuel line since one came in the kit and swapped the plug for another just like it, even though the old one looked new.
Started on the 4th pull. Let it idle for 5 mins, revved up and came back down nicely. Probably shouldn't have done all those at once since now I don't know which was the remedy. I'll just tell myself it was a combination of all 3. Hey, at least it's running.
I did to the brake cleaner around the flywheel, a few quick sprays did kill it. Not abruptly, just kinda petered out so I do have a leaky crank seal I suppose. I've never torn one down past the cylinder so not sure what I'm gonna do at this point. But the fact that it starts and runs is a small moral victory until I get motivated to mess with it again. Thanks everyone for the help, this forum is great