Nr Fairy,
From my experience, you are are along the right lines but I would suggest you check a couple of other things too. [I am doing this without a heliroute chart to hand].
You need the landowner's permission of course. I assume you are also talking day only.
Because you can follow a heliroute most of the way in, that part of the trip should not be a problem.
You have said nothing about the immediate surroundings of the landing site. You will need to be able to show approach/ departure routes that you can follow without exposing persons or property on the ground to danger. In other words you need to be able to show where you would auto safely. Bear in mind that you will probably not get an ATC clearance above 1,000 ft in that part of the zone.
Finally, what is the size of the landing site and its orientation?