Zodiac futura Air deck to ali floor

[Deggsy]

Hello all.
I have a mkIII Zodiac Futura with the air deck and have been looking for a second hand ali deck for it. I have been offered an ali deck from a zodiac futura s which he says is 16ft long. I’m struggling to find any info on this model so am wondering if it is the same as mine and he maybe has the measurements wrong? The transom was knackered on his and has been removed, no id plate is visible, is says futura s on the side.
Neither of us have any idea how much it is worth either, so any suggestions?
Thanks

[Deggsy]

This is his. I does look slightly longer than mine and the tubes look a smaller diameter.
I’m happy to cut a little off the length if needed, as long as the width is right.