Thanks for taking the time to explain your answer and for the benefit of anyone else the answer is I looked at micro trains website and discovered that the coupler I need is a body mounted 1015 001 02 000 available in black or brown and un-assembled luckily I have all the required equipment to do the job. I am in the UK England and have found a supplier so ordering in the morning thanks again for your help
regards Stevep100
regards Stevep100