Does anyone know of an adjustable sway bar kit or how to fabricate one. I would like to be able to adjust it from inside the car.

http://www.hrpworld.com/index.cfm?fo...ction=category

Here's a chart to help you out. They are solid bar readings.
Our rear bars are 36"wide, the chart reads for 37 1/2" wide. so the shorter will be just a tad stiffer.
The arms are 9 5/8" in length.
This equates a Spohn 25mm Solid rear bar to be about 275lbs rate.
A 22mm (7/8") for our cars bar would be about 225lbs rate.

Thanks that is good info.

Your welcome. I have also figured what bar I would run on the back of my Camaro if I ever bought this setup- thats why I have the info.

I would buy a 1" OD "hollow" bar with .095 tubular walls. 36" length. The arm blades ar 7.75 so that would probably set me right around 300lbs max.
Now with the 2nd from smalled blade arm (the .270thick blade) that will allow for it to lessen adjustment hopefully to around 200lbs in about 25lbs increments with the 5 position adjuster. It depends on the flex the blade will give whenit kicks sideways via the adj cable, but I would verify with HRP by phone before I ordered it to see if my calculations are accurate on the blade choice.