Try American Powertrain, they have a set-up for the 833 4 speeds that uses a universal bracket. Try this website www.americanpowertrain.com

There are a bunch of ways to do the hydraulics on the a-body. If you want to still retain the clutch fork and remain fairly inexpensive look at the wilwood items that Summit has. Another alternative is Tilton, great stuff but is a bit more pricey. There have been a few thread on the a-body hydraulics and some are quite clean installs. Check it out.