Feel like I'm looking for the impossible

[CTR]

Hi, I was hoping someone on here could help me.
We have a horse where I work that wears a D-ring copper roller snaffle and we're looking for another. However the D rings are a lot larger than the standard bits that I've seen and I cannot seem to find one with large D rings anywhere (apart from bitbank but it was £80!)
I would be extremely grateful of any help that you guys have to offer.
Thank you.

 

[Shady]

have you looked at the Korsteel one? they are big if i remember correctly and it's a nice bit, my friend has one.( might be one on ebay to look at)