Dude, you’re a big guy. Or rather, a tall guy with a lot of space to fill out. If you focus more on “just” getting lean (meaning dropping fat), you’ll end up looking gangly. No offense. I’d suggest more of an emphasis on building muscle. These three articles, from 6’4" Lee Boyce, should help too:
I stand by my previous ab work suggestion. Minimal, with more time spent on the big stuff. And, obviously, don’t overemphasize training and de-emphasize nutrition.