Fllor mounted joystick advice

Hi all,

I am new here (first post!), but I am looking at converting my Thrustmaster HOTAS X joystick into a floor mounted stick. I have opened it up and there are lots of wires for the buttons. I would like to retain the function of the buttons or at least some of them, so would need to snip them and extend them.

My question is what wire do I need? I have emailed Thrustmaster but they were not able to give me any info. The wires are very thin, I am able to solder so I presume I should be OK, I am just uncertain what type of wire I need.

Thanks a lot.
Dan