Sadler 26 mast gate replacement

[Sjk1000]

Hi all
We've just lost the "mast gate" coming out of Mallaig on our Sadler 26. Forgive me if that's not the right term for it. It was a hinged, sprung thing about 4 inches long. We're heading to Arisaig to the yard there atm. Is this a simple fix with a replacement part? If so, can someone send please me a link (before I'm sick from looking at my mobile). Otherwise, any help and advice would be appreciated.

Update:
Thanks Boathook, Praxinoscope. Just in at Arisaig. Added some photos. Yes, it's a Kemp mast.

From the options on Jimmy Green (Large 106mm, Small 84mm) it looks like I need the 106mm (roughly 4.8" in my photo)

Just added a screenshot of the Selden Sail Entry installation instructions... Is it really that simple?

Thanks, Steve

 

[Boathook]

Really need to know the mast make. The fitting does look like a kemp mast, now selden. Selden website seems a pain to search.

Selden Sail Entry Gate Tongue is the missing bit like this?

 

[Praxinoscope]

The gate tongue looks exactly like the one on my Sadler 25 Kemp mast so I think the item Boathook has suggested in #2 from Jimmy Green should be OK, just have to identify mast size.