patching rust holes?

["Scott Gardner" <gardner7@pilot.infi.net>]

Well, I was investigating a paint bubble on one of the doglegs (the 
little curved part aft of the door sill), and I found a rust-through 
hole under the bubbled paint.  
        How do you patch a small rust-hole when you have no access to the 
backside of the panel?  Am I looking at having a whole new dogleg 
welded in?  I need to have the floor pans replaced anyway, so I may 
just farm out the dogleg as well.
Scott