This is a good idea, however you have ulterior motives. You are greedy for power and success. What is right or wrong doesn't affect your decisions anymore.
Call a meeting of powerful leaders of the north and west in Inverness. Once everyone is there, amubush and imprison the leading magnates. Now Albany is dealt with, no-one is going to stand in your way!
With the profits incurred from increased taxes, invest in gaining favour with the leaders in the north and west. This isn't bribery, you are merely drawing their attention to the benefits of supporting rather than opposing the Crown.
Which card will you play?