At the risk of sounding extremely naive (and I'm not an ATCO), why don't Finningley act like a proper airport and splash out on their own radar head (primary at least - pipe in SSR from Claxby) and radar controllers. Doubtless both cost serious money but then it's not unreasonable to expect Peel to be serious if they want this project to succeed.
I'm now battening down the hatches. Over to you !