well rears you can use the rav4 shocks, so they are available.

the problem on the front is nobody makes a longer strut assembly.

BUT you are pretty much at your max drop once the upper control arm stops the travel. if you pop off the upper control arm it will go farther down, but then your CV angles are too severe to even be usable.

with daves springs in without the upper control arm mounted, you can't turn the wheel, or at least not easily due to the cv angle.

only way around that issue is SAS. OR drop the front diff down a few inches, and make custom mounting points for the a-arms. 4" is the MAX I would run up front.