If flying odd grass, you can often get by with just a tail skid instead of a tail wheel. You just have to use the elevator a little more carefully while taxing as you use a little bit of down elevator with a quick burst of power to lift the tail and blow it around for sharp turns; to much elevator and you nose over-to little and it won't turn. If mounting the main gear on the fuselage ahead of the wing, you may need to sweep the gear legs aft as, if the main gear is to far ahead of the CG takeoffs will be difficult and landings will be very bouncy.