first truck, same old quetions

[sixnine]

I'll probably be asking questions you've all heard a million times, but I'd appreciate some answers.

The rocker panels are rusted (duh!) on my '69 Chevy. I'd like to replace them myself. Which type of panel replacement is best? There seems to be more than a few different sizes. The rocker panels are bad and the rust extends onto the door sill and the edge of the cab floor. Will there be enough metal on the replacement rocker panel to extend to the door sill and floor edge? My plan is to try the new "weldless" system that Eastwood has. So there needs to be enough material on the new panels edge to flange and rivet. Will I have to cut out the cab supports and re-attatch them once I'm done with the replacement?

Also, I love the look of the 67-68 GMC front end. If I can find a decent used one, it should just bolt-up, shouldn't it?

Thank you for your ideas,

sixnine