I have a completely original 1958 Suburban Carryall. I'd be happy to send you pictures of whatever areas you want to restore. Also , a lot of parts are available thru Jim Carter, Bow Tie Bits,and Brothers, for the common truck parts and many Suburban parts.
If you want to see a beautiful Napco Suburban restoration, go to http:members.tripod.com/P-Wee/index.htm . Rodger did a beautiful job of documenting his restoration.
Good Luck- Mark