you can probably find a big bolt 7 1/4 cheap if you didn't want to upgrade to a 8 1/4 or 8 3/4. people usually just trash them. any 73-up abody big bolt 7 1/4 will bolt into your car..
Thanks for that link. It does explain all of the swap parts. Of course the UCA's are unobtanium, so I will still need aftermarket parts. I bet I would have trouble finding a used cigarette lighter for a 35 year old A body around here - let alone a suspension part. Must be geographical. I am pretty sure I can find an M body here someplace to grab the other parts from. Have not seen a 79 vintage B body anyplace since the spike in steel prices a while ago.
