Sean,
There are two possible ratings in the UK which let you fly in clouds. Unfortunately, I don't think either is going to help you.
The IMC rating is the one which many private pilots get. But it can only be added to a UK license, and it is invalid outside the UK. Hence, you can't get the rating, and even if you could it would be no use once you go back home.
The Instrument Rating (IR) is generally the domain of commercial pilots - that's because the amount of groundschool required is seriously excessive (several hundred hours). Also, very few schools offer the groundschool training at all, because most commercial wannabes do the ATPL exams, which basically combines the IR exams with the CPL exams, so there is very little demand for the IR exams on their own.
Sorry.
FFF
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