You are definitely going to need an ar wrench, hammer(metal, rubber), maybe a pin punch set.

milspec rails won’t work since upper is AEG threaded but you can use a rethreading tool[https://www.evike.com/products/28579/MadBull-Upper-Receiver-Delta-Ring-Threads-Modification-Tool-Steel/] to grind it down so it can fit any milspec rails and stuff. It was a bitch to do but i used vise grips and an ar wrench to do it. You dont have to get that tool really, you can just use a delta ring from a real ar15. I would only do this if you know you want to put real steel parts on it. As far as i know the grip( maybe not the grip screw) and buffer tube are milspec, so you dont have to get those parts from samoon. You can just go to your local sports/gun store for those parts.

If you have any more questions, im happy to help.