I am no use to you coz I live in Glasgow!
However, our vet recommended a great dog walker and now Skye has a 2 hour walk with him every morning from 10 - 12. She absolutely loves it - and he can even hear her sqealing with delight when he parks up his van outside the house - she knows it's play time!
Give your vet a ring - see if they can help. Hope you find someone soon,
Gilly