Yes she does look like a Himalayan but if she has white feet she is more likely a marked Himalayan, i.e. Berkshire or Irish, maybe even a Hooded, but being so pale you can't see the white markings.

There are quite a few good breeders in South Wales and a show in Cardiff every year - have you had a look at the NFRS website? National Fancy Rat Society
You can also request a list of breeders from them.

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