Alright so I want to make a mage + other class via RAF boosting.

The problem I am having is that I could either boost the characters with a level 80 warrior on a non-linked account OR subscribe another account and boost them both with my level 80 pally.

What would you suggest? I mean I know having a pally for boosting is so awesome, I just don't know if I want to pay for 3 subscriptions per month just for the fact of having a a pally to boost.