Try the Avro Arrow or the F-15 from Bob Parkinson @ rcjets.com.

The Avro is a sleek looking delta and comes out at 10 and 3/4 pounds. With a byro-fan and a good .81 or .91 you will get about 12 pounds thrust. I owned one of the original Avro's from Bob and had a great time with this bird on 5% nitro. It was fast and very agile, but yet was easy to fly and land.