Call me a selfish twat but good perms with loyal landowners are hard to come by.
If its a close friend that your positive isnt going to sh*t on you then all well and good but i wouldnt be inviting people onto any of my perms that weren't like a brother to me pal.
Also, if they turn out to be a dick and trample barbed wire fences etc or even invite other pals on that act up as well, it all comes back to you.
Have they got insurance etc. In my opinion there's too much at stake.
Find it........keep it pal ?