Glad to hear you spoke to someone and got some more ideas. If it was the number at the bottom of this page, it would have been someone from the BHPS – they’re always very helpful, too.
The garden thing sounds a good idea. I always think too much stress is put on leaving the garden untidy for it to be good for wildlife. That isn’t necessarily the case and might put some people off. As long as it has the wildlife friendly features, it can still be tidy. But there are lots of things you can do, ie. put log piles in gabion baskets – the insects don’t mind. Have wild flower areas with neat areas or paths around them, etc. I have found that the hogs here seem to like the lawn a bit long for foraging on, but not too long. So still looking like lawn, but as long as there are the wildlife friendly areas around it (i.e. possibly some longer patches), it’s fine to have some lawn.
There was a garden done for hogs: