Hardware Tips for Hard Modding my 3ds XL?

[Red9419]

I would like to hardmod my 3DS (For fun and the experience. Im on 9.2) I have soldered before but not small electronics. I will practice beforehand (As i do not want any damage to occur)
Im looking into this Soldering Iron
https://www.amazon.com/gp/aw/d/B017...olid=334HXZ997POH8&coliid=I38XM3EEHTCBVP&vs=1
Would this wire work?
https://www.amazon.com/gp/aw/d/B00G...1_1?colid=334HXZ997POH8&coliid=I1VO3ZW8656X7L
Thanks!