Well that was easier than expected... Cleaned out everything yeasterday & here's how the trunk access played out....
1) Remove little "bedside" stand - not actually attatched to anything.
2) Remove mattresses & box springs - heavy!
3) Remove frames beds sit on, again not psysically attatched.
4) Remove 2 sided box that stand was sitting on which turned out to be the - gasp - trunk itself!
Yep, just a top & side of wood & there was the inside of the trunk door. sadly no milion dollars, no gold coins, just a discovery that apparently the trunk door leaks & now some water damage to repair - dang!
We may go ahead now & replace the flooring cover with a Pergo type wood floor after we repair the sub floor- opinions on messing with the "original"?