Ok. Decision made. I have plotted the route from Willworthy, as suggested by Devondave, in over Hare Tor and out via Tavy Cleave. Basically it looks like an interesting route and minimises my car mileage coming in from North Devon. I am just waiting for a few days of dry weather to let the water levels drop for the stream crossings involved. Hopefully, it won't be too long. Thanks to all for their contributions.
Yes, but we must remember that not everyone is capable or confident enough to walk longer distances across difficult terrain.