Thought I'd throw this out into the wild, basically a hand-rolled kit
I pieced together over the last year. You may be able to get all the
parts from a single source.

5" Bilstein SL Series shock, 230/78
        e.g. http://www.resuspension.com/cart/Bilstein-SL-Series-Shock.html

Stem Adapter P/N 192228
        e.g. http://www.lowrangeoffroad.com/index.php/bilstein-5150-shock-stem-adapter-192228.html

2.5" x 10" coilover springs, 600#
        e.g. http://www.summitracing.com/parts/EIB-10002500600/

I inherited the coil over adapter kit from a friend, but it was
something like this:

2.5" coilover adapter kit:
        e.g. http://www.speedwaymotors.com/Bilstein-Small-Body-Steel-Coilover-Kit,6871.html

but with a flat, solid top, something like this:
        e.g. http://www.speedwaymotors.com/flat-coil-over-upper-spring-seat-only,31914.html

I take absolutely no responsibility for anything in this email ;)