FYI............Using an out of the box comparison,The Indy/RHS X Heads flow more than the Eddy'sl............Doing work to them is like putting Icing on the cake!
You are right though for about 1k you can run a set of the Indy/RHS X Heads completly set up from Hughes with stainless valves and they will take a max of around .520 lift before any work needs to be done to them.