Lembrado,
Under current rules, no. The CAA has got itself into a muddle over the whole multi-pilot IR / IMC rating privileges business. I will be rattling their cage again next week.
You will need to fly an IMC Rating revalidation flight test. Should take less than an hour. There is no 'CAA fee' to pay if your licence already has 'IMC Rating' on the National Ratings page - even if it has expired.
I must admit that I'm a bit surprised that anyone flying a B757 can't afford an IMC revalidation flight test examiner's fee (£80-ish) plus an hour's ac hire.