Anybody ever built an Ardupilot quadcopter?

(not sure if I’m posting this in the right place, mods feel free to move if you’d like)

I’m thinking of building myself a little quadcopter just for kicks and giggles. I want to do something like the Flite Test H Quad for the frame so it’s cheap and fairly easy to repair, and I’m thinking I’ll use a PixHawk controller so I get GPS and all that good stuff. I would use a PixHawk 2 but it’s so expensive…

Anyone here have any experience with this? I would love to bounce ideas off other people before I go spend the money, just as a sanity check of sorts.

I have not personally done this yet but I have seen quite a few of these projects in r/arduino. If you are not opposed to Reddit, I would search over there. Some people were very detailed oriented in their notes.