hmm...
Well I think you will have a lot of fun, frustration at first, but a ton of fun, in the end, if you take the middle earth drawings from the orriginal books and put them to some inventive use of your own.
:-)
It's just pretty hard to find a person who is willing to stick to the in game editor for more than a few minutes before going insane.
;-)
Your best shot at this point may be to just learn to use it on your own. I know I have tried.... and despite the ability I have to use the eidtor, the frustration of me toiling with the non-inverted mouse for more than a few hours makes me cringe. Maybe if you can find a way to invert the x axis (look up/down) I would give it an other shot.
Peace.