Good aftermarket K frame

I need a good aftermarket K frame for my 1970 Valiant.The factory K member in mine is not in good shape.It has been hacked,cut and welded on so many times.Plus the engine mounts were modified for a 350 Chevy someone else did.The 350 Chevy is long gone,sold it.A 5.7 hemi out of a 2004 Dodge pickup is going in it's place.I have been talked into looking into one with rack and pinion steering also,it will drive a whole lot better.I will be driving it on the street mainly as a hot rod/sleeper.