/cgl/ - Cosplay & EGL

So, I'm thinking about halloween costumes and right now, the best idea I have is to go as a pokemon trainer. A version of the original one, ie. Red, ie. pic related.

Now, the only real parts of the costume that may end up being difficult are the hat and the vest. I'm not exactly a handy or craftsy person and this is the first time on this board. I've never altered or made clothing.

So, any ideas about how to go about creating these items? Should I just get a red baseball hat and spray paint the white pattern? (is that even a thing you can do to clothes well?) As for the vest, is it best I look for a red vest to alter to have a red collar and lining or should I just make a vest from some red and white material? Are vests easy to make?

I googled a bit and I'm having a hard time finding a tutorial, so I'm sorry if this tries your patience. Appreciate any advice.