Wxm there is a park in gwersllt, take the young dog there... Rabbits are quite used to humans there and stay longer... You don't get easier rabbits than these and a good confidence builder for a young dog... Keep an eye out for the parky though :-) a few lads at nwtlc are big into the rabbits... Why not pick there brains at a meeting.
Best of luck to you
Just read your post again properly (I'm getting old) far too many start there dogs to young and end up getting rid at 9 10 month old... Let a pup be a pup... For example I was in a beer tent a few years ago at a show, a guy in his 50s