Remove bulkhead metalwork

My van once had a bulkhead installed and when I bought it, it still had the metal curtain welded to the van.  Last Sunday I decided to remove the bulkhead metal which was rather a big job in the end.

Firstly I used a drill and a big drill bit to remove the passenger side of the curtain.

 Then the problems started.  To get to the metal across the middle of the van i had to remove the floor boarding in the back.  Just remove the screws and itll pop out !  Yeah right.  The board was held in by loads of mastic which took ages to cut away.  Some screws were too tight to undo so these had to be popped through the board when levered by a big metal bar !!

With the ply removed we could get the grinder out and start cutting through the weld.