RE kits sit higher so that it still gives you the advertised lift with some beefy bumpers, tools, spare parts/tires, and other gear stowed in the vehicle. Though most people install a lift before the rest of that, so they sit high. But they are still quality, partially because of that attention to detail.
If you've got the cash, get an RE 4.5. If not do a lot of searching on forums and decide what you want to cobble together to lift it right. Snow is still around for a while, so putting it off a bit with some research may make the install a bit more fun.
I would figure out what kind of terrain you want to drive in (or can drive in depending on location). Figure out what tire size you want. If you need any axle upgrades to run that size. If you plan on having offroad ability at the expense of comfort or vice versa. Heck even think about how much cash you really want to sink into your jeep based on it's condition.
It will save time and money to get your rig set up right the first time. I'm still learning tons every day but I read these forums a few hours a day most days. I spent about a month of reseach just to decide on 3" rusty's coils and 3" OME leaves with trimmed fenders and 31's. I didn't want to tempt fate with steering issues or diveline vibes with too large of tires or too tall a lift because I just didn't have the budget for it. Especially not for a 18 year old rust belt jeep.
It's late, I'm rambling, I'm just trying to put as much info and idea's out there for you to look at before you drop your hard earned coin on parts. If I had a nice jeep and the money for RE I wouldn't hesitate to buy from them.
