Most new guys make the OME stinkbug mistake then have to spend more money to fix it.
A level lift would be adding a 30mm coil spacer to your front coils which would net you a 4.5 to 5" of lift.
2nd option is to replace the 863J with an 863 coils. (They are going to tell you the rear L shock is...
They have been selling that lift for maybe 15 years... maybe someone on mud has a set??? You could try the search function... you might find some threads.