You got 2 totally different lifts there.
First off ... No way in hell anybody needs 6" of lift on a JK.
Are you looking for a long arm/more complete kit?
TERA has others to choose from as well.
Or you can stay simple and go with the TERA lift you linked. Great lift to start with
You can choose with or without shocks as well.
You may want to add a adjustable track bar for the front and possibly LCA'S for caster/better drivability.