I started to scrape away the old wallpaper (or contact paper?)
throughout the vehicle as it was old and had been peeled away by time
and humidity...

It's time consuming, but now that certain parts are off, I am looking
forward to repapering the van...

I started to paper the fold-over bed and realized that simple contact
paper wasn't 'sticky' enough and am left wondering if anyone has any
experience with this procedure...

What type of paper did you use to repaper?  Regular contact paper and
extra glue?  And is there any easy way of removing the wooden panel from
the sliding door in order to work more comfortably?  When I attempted to
remove the panel, I broke one of the plastic clips and now am left with
a whole...does anyone know where to get those clips from (if anywhere)?

THANKS for any info....