if you consider 5-6" of lift a little bit, then it will keep a little bit of lift...
I would bet that you have Rough Country springs under there, they are cheap to buy and nearly always ride "like a tank".
If you have to ask if an SOA is for you, maybe its not right for you...There is a lot of engineering and time/money to make it right, but it can be done. Are you willing to have the Jeep down for the time it will take to build the SOA system?
IMO, a good quality SUA suspension can ride just as well as a SOA, with the added benefits of cheap(er), easier by far, and not nearly as complex to install.
Look into a kit like SuperLift's SoftRide suspensions, I have one, and it rides great for me. With the right shock selection and possibly a shackle reversal (like mine), I bet you can beat the ride quality of a set of YJ springs without the hassle of building an SOA.
Then again if you want/need that much lift, can afford to build the SOA, dont mind the downtime and have the fab skills, then go for the SOA and enjoy!