I think a regal GS/monte carlo/imapala SS will work as well because it's a w-body, and has the proper mounts. any other car with an L67 (H-body) have different mounts and therefore will work, but you will need to obtain the w-body mounts.
Additionally I'm not sure if the PCM from the regal, mote, or impala will work(possibly BCM issues?). The PCM info may be wrong, but I thought it's something I've seen.
In my swap I've used a variety of PCM, 00,01,03 GTP's, so I know they work!