Bobs stuff is top notch quality, I have his tublar k frame on my car. He is a hard guy to get a hold of on his shop phone especially in race season, leave a message and he usually will call back soon as he can.
It won't be cheap but you have a few options
https://www.reillymotorsports.com/store/home.php?cat=269
HemiDenny's HDK Suspension
http://www.forabodiesonly.com/mopar/showthread.php?t=231425
http://www.bobsprofab.com/...
Have you guys looked in to using a AFCO Racing 3850M or 3855M style coil-overs and get rid of the shock adapters?
http://www.summitracing.com/parts/AFC-3850M/
http://www.summitracing.com/parts/AFC-3855M/
I would say there a dealer for Bill's stuff
Manufacturer's List
Air Lift
Air Ride Technologies
Aldan
American Autowire
American Racing
Be Cool
Bill's Hot Rod Parts
Caltracs
Chassis Engineering
Cool-USA
Currie
Dakota Digital
Direct Sheet Metal
Flaming River
Gorilla...
I think they help but the guys who I know upgraded used Bill's stuff, a good guy and has excellent customer service.
http://www.reillymotorsports.com/store/product.php?productid=16167&cat=266&page=1
Well Dan if you don't want them I will buy them:iconbigg:
To be honest I haven't heard a complaint from anyone that owns them, will be a future purchase of mine.