Forum:Finishing the game perfect

I want to complete Mass Effect 2 perfect in paragon, I have all the DLC's and I want to have Legion with me on the missions Dossier: Tali and on her loyalty mission. because I have seen that it would have extra dialog option etc. but how do I plan it all, because I have limited time after I recruited Legion and before the IFF Installation, and I want to do the loyalty and recruiting missions of Tali and the loyalty mission of Legion. Does anyone have tips or tricks?