I fly mine in pretty heavy winds, it is not a real problem with the sport wing, the A wing is a greater problem in the wind. PT-40 is a great little plane, you will enjoy it a great deal, but I would put in the Ailerons for sure, it is WAY better for 4 channels (I have played with mine using only 3 channels- so I can tell you from experience).

If you do decide to cut the wing, rejoining it is not that big a deal, I did it a few weeks ago, it takes a couple of hours to do the work, and then some time to let the epoxy dry, but it is really pretty easy to get done.