Better off cutting timber. There is plenty of Hazel, Ash, Maple Sycamore. It's a matter of asking around local conservation groups, council parks departments, tree surgeons etc . Any time he hears a chain saw he should investigate.
First find the timber, then worry about how to get permission or how to cut it.
Finding a good timber merchant is more costly, but searching for timber merchants, or archery material suppliers will find something.
Del