First and foremost, save yourself the time in the future and get every heirloom right now. Run your 85 through BG's, convert all the HP to JP and buy all heirloom gear. Transfer it all to one bank alt and have it all sorted so you don't have to go looking through 5-6 toons to find the set you want.
I enchant everything the best I can for level 1 as well (+15 agi on daggers, +250 health chest, etc), everything little thing is a big help. Don't forget to get the two heirloom trinkets as well (most people for get them) and buy one of each of the cloaks and helms from the guild rep. Once you have it all, congratulations, you are now ready to start botting alts.