I cut the fronts out and made a slim (luaan) tray that slides in and out like a drawer, keeps maps and such handy. but still difficult while in transit. 

I've NEVER understood why VW or heck Westfalia never utilized that space, it's only natural to add a drawer, or power seats (room for motors) 
heck even a slim subwoofer would be perfect .. I think Fieros had a small slim fit sub stashed inside. 

on the battery cover, I can't help you there, I cut the back off mine so the battery removed easier and made a new cover with wingnuts. 

Dan 

From:    rpc <populuxe59@YAHOO.COM>
Subject:

Hello,
  I have donor swivel seat mechanisms from a fellow list member to install in my Multivan. I am anxious to get them in before spring.  Does anyone have or know of pictures/info on opening the front seat base to keep it usable? I can cut it with a Sawzall, but would like to complete it for a finished look that will hold the stuff I currently keep under there (first aid kit,music,binaoulars, compass, camera).

  And, do I have to cut my battery cover? Or will a cover from a Westy base fit in there? I am assuming they do use the same type of sheet metal cover.

  I was able to finally get a seat off the track and out. Was trying to pull it back (wrong way)-- going on 2 years of trying. Looked it up in VW manual. It goes forward. Simple.
  Thanks,
  Chris C 90mv