for cotton everyone uses koh gen do. perosnally i prefer cotton bacon. for wire ID about buying wire off amazon but i jsut checked and temco is on there so go with temco. they make good wire and any of the good "brand" wire is likely re-branded temco and marked up. https://www.amazon.com/TEMCo-Kanthal-wire-Gauge-Resistance/dp/B016068VW6/ref=sr_1_17?ie=UTF8&qid=1500418037&sr=8-17&keywords=kanthal
EDIT: amazon has cotton bacon so personally i'd go with that https://www.amazon.com/Cotton-Bacon-Version-2-0-Bags/dp/B01DOEQ2XC/ref=sr_1_1?ie=UTF8&qid=1500418154&sr=8-1&keywords=cotton+bacon
Cotton bacon and temco would be the way to go IMO unless you are set on organic pads then go with koh gen do