best way to get a better stance

Neat stance. Looks tuff, like old school drag. Plus ground clearance is great for off roading (bandit style).

First questions. Do you want your car that high? Or are you just sick of how low yours is?
What is your intended purpose for the car? Looking cool? Drag race? Street driving like all over the place on hills and curves?

Jacking a car up that much obviously hinders the process of carving curves severely unless you have some stiff springs and sway bars to compensate, which will give you some street and curves capabilites. I mean, heck my 4x4 dakota is pretty high up (very stiff suspension) and it corners excellently. But if it had lots of power it would just smoke the tires rather than launching in 2wd cause the suspension is like a brick.

Well, you can raise and stiffen it: The rear leaf section by adding some leafs out of a dakota or another car with matching width and proper length leafs. I would look for long thick leafs to give you height and strength in the rear, then add back all your factory leafs too, under the long new leafs. There are threads on here that describe the process and results. Front, I would get stiffer torsion bars which are correctly indexed, then crank them up high. Like factory BB bars or stiffer. Also, I would run sway bars front and rear to help with the leaning effects.
Problem with stiffening suspension is that drag racing is going to be less than optimized do to the lack of suspension reaction / travel and weight transfer.

So you are stuck with raising it with soft suspension (particularly in the front) and driving a walrus all over the highway but good for drag racing, or stiffening it and raising it but not being too great at launch.

You could try to get a hybrid effect:

Run stiff T bars and rear springs, sway bars, but when drag racing, disconnect both the sway bars (from the links) and change out front shocks to drag shocks. You can help your weight transfer some with those changes, on a stiff suspension.

I am sure there are a number of ways you could create compromises in a car suspension in an attempt to get the best of both worlds with regards to cornering and launching but they will likely always be taking away from one to give to the other.