Thats quite a wish list you have there! What level of detail are you looking for? Textured or untextured, rigged or object only etc... A little more specific would help. I would doubt though that you would find a highly detailed model for free (with the exception of Bazze's stuff - www.colacola.se)simply because of the amount of work that goes into them. That said though, I am in the middle of doing a Lancaster so when its finished, it shouldn't be too big a leap for the Manchester. The hard part is finding good quality Blueprints for the old stuff to work from. Good luck with the search..