Disc Brake LBP setup + 8 1/4 rear wanted

Hey guys,
I'd like to start building up my parts needed to convert my '68 barracuda to a disc setup with the large bolt pattern as well as getting a an 8 1/4 rear. I'm located in Houston Texas so anything within a reasonable driving distance would help. If anyone has any '73-up A body stuff let me know.
Thanks!