Get yourself a Vector Flight Edge 540 with a good running 90. It will be off in 15' and headed vertical. I fly from a 150 foot grass strip by my garage and only have trouble when I have a flame out. Put a barrier at the end out of that orange plastic net stuff, to catch serious over runs. I haven't damaged my plane from going into the barrier. Only time I've even hit it is when dead sticking in after an engine failure.