Rust repair panels for my '61 'burb?

[tygaboy]

Hi all,
I'm a newby to the world of early-ish Chevy trucks and just picked up a '61 suburban project. The intial plans include swapping out the 500 Caddy motor and fiting Chevy turbo diesel that's been converted to run on waste vegetable oil.

But to get started, I'm needing to do the usual rust repair - mostly the rockers and front floors but I thought I'd ask here if the parts I'm finding for the similar year pick up are the same as what the suburban needs. The rockers look to be the same but can anyone clue me in to the floor parts I need? Is there a preferred supplier of this stuff?

I also need fenders, inner fenders, rad and grill supports - essentially replacing the whole front end as it'll be less to do that than repair what's there.

Also, as a possible point of interest, I do composites work as a hobby (think carbon/kevlar motorcycle gas tanks, fairings, etc) and think I'll be going with a less traditional 'high tech' theme for my interior. Carbon consol, side panels, gauge panel, glove box. I'll post pics as I make progress. If anyone is curious about it, let me know.

Any guidance on the replacement panels is greatly appreciated.

For now, here's what I'm starting with - wish me luck!
Chris
925-708-5295