Hi Mike
Since I gave up buying a ticket (wow, what a price! Is it £160 now?) I have been staying at the York for about £40 per night B&B - its expensive but I don't have to pay for a season ticket any more, the wonderful breakfast keeps me going all day and its very comfortable!
You say you are too late to get a hotel but there are always cancellations, some at the last minute. Try ringing round all the hotels, small and large to get put on a waiting list - and then ring round again in June ... and July ... and with two days to go ... You could be lucky (a single room cancellation won't be good enough for a couple further up the waiting list!)
All the best. Hope to see you there.
Clouds are upon a summer sky, there's thunder in the wind ...
Alan