I get the feeling they're not worth buying at all. They might be a bit sweet looking, but its easy to go nuts like this when you do an install. Having done it once, I think its better to put together the stock (used where possible) stuff and get it running. After you see what's up, then you can make the changes you think are necessary. I'll show you my 800-dollar nuclear-grade stainless fuel system in the yellow truck sometime if you want to see a great example of needlessly over-doing it. Honestly all it does is slow down the project and make extra expense.