If you buy a OEM head gasket and use that, get a kit off ebay. They are cheap and the gaskets really are not that bad.
http://www.ebay.com/itm/Plymouth-Las...9d0070&vxp=mtr
I have put these kits in 3 - 600+hp engines that have held just fine as well as various stock and mild setups.
A gasket is a gasket. As long as it seals and holds up, how is one better than another?
Just get an OE head gasket or Felpro Permatorque and you'll be set!