>>10966100Madhands mentions in the instructions what type of joints you should use, mostly hobbybase ones you can purchase off of sites like HLJ or Hobbystock. You'll also need supplies like Pinvises in order to drill holes for the joints that can also be bought on the aforementioned sites.
As for other things, you'll probably need to pick up some putty in case of airbubbles, which I recommend picking up Gaia notes instaputty for that.
You'll need sanding tools as well because there will be mold lines you'll want to sand off, along with at least some sort of mask so you don't breath in resin dust. I use the 2mm Godhand sanding sponges of varying degress of grit myself.
As for paints, you can pick up any hobby grade paints like Tamiya, Mr Hobby or Gaia Notes for that. You'll probably have to learn how to use an airbrush though for the painting. As well as paints, I HIGHLY recommend getting gloss clear coat to spray over the waterslide decals for the eyes, otherwise trying to apply them to the faces will be near impossible.
Finally, take the instructions that came with the kit, and if you can, either scan or take photos of them and upload them to google translate to translate them for you, that helps a lot.
Sorry for the word spew, but it is a complicated process, and I hope I was able to help a little bit.