When we was growing fowl for  the Christmas market it was unblefabul at Huntley they fetched £18 each not dressed .And £40 for the geese .The 18 were corn fed .We stopt doing the fowl as dispatching and dressing was a problem . Did like doing the fowl the pics look splended Dave you will get the ideal bird .Myn  was Dorking Indian and ixworth the hatching eggs made more than the stock .It takes a season to get the foundation stock castle farms have some lovaley stock for these  projects .
Thanks VF, yes that's what this year is all about getting the foundation for next year I will then be trying 3 different crosses between my birds, comparing early maturity, size and taste and also if they then breed true. 
I will then know where to concentrate my efforts and stock my birds accordingly. 
I got my original IG birds from Castle Farm and am very happy with them, I've bought in new stock this year to merge bloodlines. 
Not sure if Castle Farm is still going, not heard anything from Dave since May and a lot of people haven't had any replies when trying to order hatching eggs.