Welcome to the forum! You have asked some really good questions and gotten some great feedback. Most important you are planning your build for what you intend on using your jeep for, that might not seem like a big deal but there are a huge amount of guys out there (maybe a few on here) who can share their mistakes with you. Buy once and cry once when you buy your parts. Like @Chris said, avoid the junk lifts and buy quality. I am currently running Metal Cloak's long travel short arm with Old Man Emu shocks and could not be happier with the ride and performance, both on and off road. As other have said OME is definitely worth a serious look.