Have you checked out the Retrojet thread?

http://www.rcuniverse.com/forum/m_11550300/tm.htm

A guy forum name Alasdair posted a pic of his own design called a JayTee.

Looks like exactly what you are after!

Perhaps PM him for more information.

Another options may be the Discovery Jet, I think plans are still available:

http://www.airagestore.com/plans/rc-...overy-jet.html

I love the simpler jets built like real model airplanes.

John.