Sad news, Chris, but what a great challenge with your garden at home!
Chums here have started the discussion on ways forward, and since we gave up our 'Patch', we've had a lot more 'fun' with a much reduced planting area, and without the slog of 35 beds to tend!
Here's a tip - Don't put photos up here, as you'll get so much advice, you won't know where to shake a stick at...
...on the other hand, maybe you should..:0)
Best of luck!