USBNetwork should work.
MKK is bundled with the snapshot jailbreak.
KUAL and other kindlets do not work on earlier firmwares of the new PW2 w/ 4GB storage, so you may have to update your Kindle.
http://amzn.com/kindlesoftwareupdates/paperwhite2ndgen
EDIT: Yep, 9017 is one of the 4GB models. I believe Amazon fixed the Active Content bug with fw5.4.5