First of all, thank you for your service, Devil Dog. You are (and always will be) a member of an elite fraternity. As for your questions: the only stupid ones are the ones you don't ask. Many of the doods on here will learn from the responses to your questions above. Your reports will help reinforce that learning.
Power fishing is a relative term when fishing highland bodies of water. There will be times when the fish come up shallow (<10'). There will be times when 40' may not be deep enuff. Crankbaits may not be the power fishing bait of choice. You may need to consider weighted swimbaits, spoons/blades, underspins, heavy spinnerbaits, and heavy swimjigs to cover water quickly and efficiently. The Tokyo rig may be another. I've not used it but have seen it used as a power fishing presentation on some videos. The key is using something you can get and keep (the important part) in the strike zone.
Ledges are an interesting kind of structure. Not all ledges are created equal. You'll want to target ledges that are close to shallower flats and channel swings. These will be places where fish can move to feed and back quickly, effortlessly. A little map study will help you ID these kinds of places. A little time over your electronix will help you dial in the locations that are holding fish.
Couple things to keep in mind as you prepare to make your deep water power fishing trips: 1) Use the right gear. Throwing deep diving crankbaits will flat wear you out if don't have the correct rod. Do some homework on how the pros fish deep cranks. Ask some of the doods on here how they do it. Same-same for heavy swimbaits, swim jigs. 2) Semper Gumbi - remain flexible at all times. You may have 10 or 12 rods out for these trips. You'll want to cycle thru them all to get to the best solution for the conditions you're fishing. BPT tie on lots of different stuff, changing colors, body shape, bill length, etc as you work thru options. 3) Keep a notebook handy. Take notes on what does, does not work as you work thru your outings. As you build up a few pages you'll then have an informed start point. You'll gradually eliminate the guesswork and get to a place where you have some confidence in finding/catching fish.
Finally, congrats on retirement. Airborne retired 11 years ago after 32 years on active duty. I find solace in fishing now. Many of my trips are with my Bros from my active duty days. Good luck w/ your move to KY.