Hi Little Blue
Quite a coincidence. My very first hatch last year were Derbyshire Redcaps - 3f + 4m.
I was quite fond of them and my wife was over the moon with them. I grew them on and enjoyed them a lot. Unfortunately the cockerels - all four of them - had very strong voices!! I got homes for one - then two more. In the end Brian (remaining cockerel named after Brian Clough of equally loud voice) and his three girlfriends were taken back to the egg source to be re-homed - they were a truly handsome breeding quartet but I was set on my black and whites and did not have sufficient segregated housing to do them justice.
Lovely breed. Thankfully, because they are so decorative and impressive, their future is pretty well assured.
If you want a source of hatching eggs and/or good quality birds, contact Daniel at 'Moorlands Poultry Supplies' - they have a website - and tell him Paul at Waterhouses put you on to him. He is crackers on DRs and will surely help if you want to spread your genetic base with new blood.