Sup guys, I'm planning to make two accounts for multiboxing. I looked around the various help topics and couldn't find anything, so if anyone could help me that would be great.

Basically, I'm looking for the way to get two accounts up and running for the cheapest cost in terms of the accounts themselves. Currently I'm looking at around $100 per account ($20 for Vanilla+BC+1 Month, $40 for Wrath, $40 for Cata). I'm not sure if the package containing Vanilla/BC/1 Month counts for a free month due to RaF, or if there is a cheaper way to combine all expansions. Also, I'm not sure if I should have all accounts on a single Bnet or spread them out.

Just wondering if there is some method I don't know about, especially something pertaining to using RaF that will let me get the accounts up for under $100 each.