Castille questions about new game

[Tarantius]

Hi, I'd like to start a new ironman as Castille for the achievements and I was planning to conquer/vassalize all the colonizing nations as found here. Portugal I know is 2 wars: take 2-3 provinces then vassalize and sell back, maybe break truce. Aragon I want to PU by event(should i go to war?), Granada will be conquered with the mission, Brittany will be two wars I think.

I'm not worried about the rest of the colonizers since Norway is under a PU, out of reach, Netherlands doesn't exist and Burgundy I hope will go to Austria.

So my questions are:

1) Is it a good idea to try and vassalize England and feed it Scotland and Ireland?
2) How many wars will 1 take?
3) How can i deal with France?

My objective is a monopoly on the Americas, Caribbean achievement, India achievement, form Spain achievement and the one to discover America.

 

[crisrko]

The moment you set foot on English soil you'll be squashed if you're not careful. If you plan to do so, make sure they don't take ANY provinces from Scotland, or they'll smack you in the mountains.

It will take 2-3 wars.

France is better to be dealt with at the start, and you have no chance doing that alone. Get your hands on an alliance with Burgundy / Austria.