Front dress for a BBC conversion? Make a ZZ502 look "OEM"?

[Ozona]

Hi guys:

I'm going to swap a ZZ502 into my 1972 GMC Sierra 1500. I want the engine to look as original 1972 as makes sense.

The current engine is the original 350, It has power steering, air conditioning, etc - loaded.

Questions: Can I use any of the pulleys and brackets from the SBC on the BBC? Do I use a "short" pump or a "long" pump to use the stock looking brackets/pullies? Where can I get them without getting ripped off?

Additional questions: Any other gotchas about a BBC swap? I already found that Classic sells replica valve covers from 1972....What air cleaner did big blocks originally have on them? Was the intake painted orange w/ the block or was it natural?

Anyways - any help or answers you guys have would be hugely appreciated. I searched and read already.

I can't wait to get big blue rollin' w/a 502.