yes & yes , I have an A body 833 OD that will bolt into your E or B body using a custom shifter mount , But the shifter comes through in the bench seat / forward position
you can also swap the mainshaft & tailhousing to modifiy the 833 to long shaft using you existing gear set , the OD & normal 833 use a different mainshaft though so if it is a OD now you need an OD mainshaft for example