That picture is one I’ve nabbed off of Facebook, it’s signed too. I doubt it would come with a number on and no way would the signatures be on it - obviously.
The Sabella one comes in all sizes upto about XXL (I think, it may be another X) and I’ve paid £30 including postage from Australia so expect the same.
If you’re on social media his Facebook is ‘grim up north retro’. He’s also releasing that yellow one with the chevrons on it this month which I’m looking forward to. His eBay is ‘gunretro66’.
Edit: it was SleafordBlade who posted the picture up (how do I tag his name??)