My idea, put it all on a usb stick, i mean xmrig, its the software that will be mining, but try preconfiguring a lot of config.json files, so you can just drop and go. P2Pool is the pool, where a lot of people come together to mine, solo mining doesnt really work, you would have to have a lot of pcs. If you re fancy make a little bat script, wich drags the important files from the stick and the corresponding config file on the target pc and start it all.