I had a long talk with C. I got to hear somethings that rang true based on what I already know. Whether because C knows how hard it would be to re-home Henry, or she's aware that he's too old to be re-homed, or she really wants to keep him and a few hens still we have come to an arrangment. C's original idea was to move the small broody coop into their back garden and keep Henry and some hens in the small coop. The small coop isn't fit to house more than two.
It seems that C did in fact use the groups money to pay for half the new coop.
This needs to be returned to the group. C has some money for this and maybe a couple of hundred pounds more. I've offered to finish the coop door and a few other small things and said I was prepared to donate the coop if they kept Henry and 3 or 4 hens. The feed bill would be manageable, the cleaning is easy and with the coop extension would provide enough room for Henry and three hens in both coop space and allowing a bit more than ten square feet of ground space per bird. C said they want to pay for the coop but couldn't raise enough money at the moment. The whole new coop with extension would cost close to £800.00 for materials. I offered to sell it to them for £300 paid at £50.00 per month.
This would mean Henry gets to stay with the remaining hens. Someone is bound to complain about Henry's crowing but the is no legal reason why roosters cant be kept as far as we know. It's worth the risk to me and as C said any complaint could be a long process.