Eagle's idea about 4-2-1-3 is nice. 3w is soo squishy, therefore, you can put some real pressure on his defense. I'd add Whole pitch pressing style (so you can capitalize on your 3 ST pressure). Keep in mind that with 4-2-1-3 there's a strong trade off between ball possession and counter attack. If he has very good midfielders you should enhance your mid more than just 2 MCs + 1 AMC.
Another idea is to go 3-1-4-1-1 or 3-1-4-2. Theoretically 3 DCs will be just fine + a DMC to mark his AMC and you don't give up tooo much ball possession yet, you still pose a great threat with 2STs or 1 AMC (red arrow) + 1 ST vs his 1 DC (in a wide back line I suppose that his fullbacks won't assist his DC very effectively). If so, I don't think long balls are necessary, you can go mixed.
In any case, I would definitely go whole pitch pressure. He gives too much space at his pitch to leave it + you outnumber him at his pitch and you must capitalize on that. (since he's stronger, defensive mindset is just fine and in case you wonder, it doesn't contradict with whole pitch pressing).
For the second match I agree with 4-1-4-1, especially if you have good fullbacks to put red arrows and attack down both flanks. I believe you must try to outnumber him at flanks. Own half pressing, mixed passing maybe hard tacking (since it's a final, you don't care about some yellows)