anyone hear of 440source.com?

I'm planning on doing a 440 stroker to put in my '73 dart. I was wondering if anyone has used the stuff from 440 source or not. It's about half the price but is it going to be half the quality? I want to build the motor once and freshen it up once a year but not buy a new stroker kit. Should i go with something eagle or scat? But then again i heard eagle is having some casting problems too. Please give me some advice on doing it the right way.