One of the best threads on this subject appears to have been deleted. I did copy it a long time ago and saved it as a PDF. If you want me to send it to you, pm me your email address.
Most people use a 20mm can. The advantage is that it's just about the perfect height for an arm rest when you install it. The downside is that it's pretty wide. I found that a little too wide for my liking as it pinched the seat covers when I went to close it.
Also, check out this thread... ammo box storage.
You can see what I ended up doing in post #6. I went with a slightly smaller can and made a bracket to raise it up to arm rest height and to also pretty much clear the ebrake. I did have to cut a corner out of the can but I could have avoided that by using a slightly smaller (front to back) can. Overall I like my new console!!
You will have to do something with your sub if you go this route. I pulled mine out in October or so and don't really miss it. I might build a box to store it under one of the front seats (not the greatest sound quality, but I'm not sure how I'll like the bass thumping on my butt!!!) or I might flip my sound bar to get the speakers closer to my ears. I haven't decided yet.
Where in KY are you? If you decide you want a 20MM can that's already cut for the ebrake clearance, I can make you a pretty good deal. I don't want to go to the trouble of shipping the darn thing, but if you're in NKY, I might meet you somewhere north of Cincy.
Do a search on "ammo can console" and "ammo box console" and you'll find a TON of results. A lot of them are for YJ's but there are a fair amount of TJ threads on this as well. Good luck!