Hi Ossie
In response to your PM

No problem, the kit is excellent, painted as you want. Canopy is finished. There is no building work to do, just assembly. All control surfaces are hinged, retract mounts in wing, cut outs for nose wheel.
I have drawn an engine mount for the MW44 which, if used as described on the drawings, sets the thrust angle etc.

When you order engine, also get the Wren tailpipe for the L39.

If you want drawings or photo's let me know i will e-mail them to you.
The Wren tailpipe is a new development and actually increases thrust in the aircraft! I get over 8.5lb thrust in the plane.
Hope this helps.