check out the thread earlier today about taking a-50 and fina together resulting in gyno from progesterone.
Other than that, I would always put in at least 100mg/test/week when taking fina.
As for keeping gains, you will lose the water you gained on the abombs, but if you end your cycle with the right therapy (clomid, etc.), you should be able to maintain a decent portion.
If this is your friends first time, I would steer clear of abombs and fina.