Hi and welcome
Really sorry to be negative straight from the off but I fear you may be disappointed in both your expectation that your experience will be valued by either the licensing authorities or the Airlines. You will need to complete all the relevant JAA exams to obtain a licence, and that's no small undertaking.
I dont think there are (m)any of your aircraft type in the UK and sadly obtaining employment in the UK market is largly dependent upon your ability to fund a rating.
I think you might also be the recipient of some hostility from the experienced unemployed on here who, far from fancying a change, just want a flying job to feed their families.
Peace.