Theoben Sirocco HE trigger guard

[Geezer]

I have acquired a 1991ish Sirocco HE with a non-standard bling brass trigger guard. I'd like to replace it with the standard item.

Impact will sell me the correct guard for about £36. Which is a lot.

Given that I am sure Theoben did not make their own guards and used an item off another rifle, does anyone know which? From pics, it could be a Weihrauch, or a Webley Omega item (both of which can be picked up for a tenner or so).

Thanks in advance!

[transporter]

Made they're own mate
I've got a spare