Hey there Cody. Those are good questions and honestly I'm not sure what's available for your year/model as far as that goes but you might try asking in the 5.7 mod section, I'm sure someone here should have some good advice for you but definitely keep us posted on your setup if you do it!
Do you know if
1) they make a turbocharger other than the Hennessy kit for a 2012 ram 1500 5.7l
2) are 5.7l hemi kits universal for cars and trucks of the same year or so they differ
Also what are other ways to boost hp besides airflow intake and the turbocharger
Thanks for any advice