Help build my magnum engine.

Hey folks,
I'm looking for opinions/suggestion on my magnum build. First things first, this is my very 1st time so please go easy on me. This is what i'm starting with

97 5.9 magnum motor standard bore

Stock cast crank that i had checked for straightness and polished

340 connecting rods (I've been told 340 rods are forged and will work in my build??)

Diamond pistons... see link http://www.forabodiesonly.com/mopar/showthread.php?t=191940

Heads i would like to use these...http://www.indyheads.com/lax.html
Was going to buy them complete but after some research folks are saying buy them bare ...why i dont know. Also hearing indys customer service SUCKS!! (opinions anyone).

Also would consider Hughes heads. either set will be drilled for La manifold

As for cam rockers and everything else I DON'T KNOW!!!

I'm going with a 4speed.

Package is going in my 67 barracuda
Mainly street driven seeing track time once/twice a year. would be happy with 12 second times.

Sorry I'm all over the place but I'm a :newb:

Thanks for the help guys and gals!!