[X] Plan Anterled Lion
Magic in this world isn't a game changer and most times the cost way outweight the benefits, looking like a Targaryen after what Robert did to Elia Martell and her children is a big NO NO in my book, and I got the feeling Varys will be our antagonist later one with the whole Targaryen return thing so learning from him, while very useful, would always put us one or many steps behind him. Viserys surpassed Varys on his own, learning from him would not give us the upper hand. And hey, Jon Arryn was pretty much the de-facto King in canon and was doing quite well until he was poissoned and that no longer carries on here.
Now, this may escape the scope of later updates, but I'm the only one wondering what would push someone like Baelish to commit suicide? (Or maybe he was assasinated so that question becomes irrelevant)