Hello Tim,
I have completely gutted my interior as part of a major refit on Echo Papa. The good news is the ice box can be removed, the bad news is it is going to involve some disassembly. The galley unit must have been made as one piece then fitted to the boat.
Like most furniture on the 38 it is held in place by small timber battens screwed to the cabin sole and bulkhead. You will need to remove cooker and the small cupboard underneath it. You will also need to disconnect plumbing etc. Once the whole unit is out the fibreglass moulding can be unscrewed from the work top.
I have more images that I can share via email if it would be helpful. Cheers Jon
Edit Can never get photos to load here very well email me if it is easier