What makes you think the hares will settle where you release them? Lancs is pretty flat where the hare used to abound and bringing hares from east coast is rolling hills until you get down to Anglia, so a lot different terrain to what they were used to.
How many hares are you after relocating? more than 6 and gatenets wont be an option I've been netting hares when we have had up to 6X 100yds nets in a line, with 15 men to remove and box the hares, then theres the beaters, the more the merrier (had mornings out and all the kids in a village(well known coursing village)have been brought along