Gents, I'm in a pickle here !

Long story short, I've been passed this old MK6 to try and get shooting for a family member, and I've managed to snap the loading tap lever.
This is the one with the screw through the lever which the earlier versions appear to be different.

NLS on the Chambers site, and can't see it available on John Knibbs either.
Can anybody help or point me in the correct direction, I'm gutted I broke it and really need to find a way out of this.

I can see a couple of complete Mk2 taps on the bay, I don't suppose one of them would fit ??

Any help as I'm feeling quite stressed :-(

Thanks,
Andy