What part of the UK are you heading for?
Few companies are taking on in the present climate, but there is still work about, let me know where you are heading and if I can I will make enquiries for you.
Get a job doing one of those "any questions anwered" mobile services. They pay around 7 quid an hour and all you need is a UK address and bank account. Not a job to have chiselled on your gravestone, but will pay the bills amply, and keep you in clover here.
There's lots of jobs you can do remotely here, providing you have an address and bank account in the UK you can use.