I believe it is still available as a kit although it uses the old style pump cover that has the gasket issue that Garth mentioned. Here's a link to the kit at Summit.
http://www.summitracing.com/parts/mil-21010/overview/year/1970/make/dodge/model/chargerThe new style cover Milodon offers is a one piece unit that does not have the gasket problem but it does not come with the pickup, lines and fittings. Here's a link to that cover.
http://www.summitracing.com/parts/mil-21215/overview/year/1970/make/dodge/model/chargerThere are others who make the one piece pump cover as well and Milodon sells their pickup seperately as well here:
http://www.summitracing.com/parts/mil-21300/overview/make/dodgeThe lines and fittings are all standard -10 AN braided line available most anywhere.