Ok, ok let's see what we have here
I've been away from the forum for a while but this thread got me back
So here are my thoughts:
1. Single-band Euro-style gun.
2. Length of approximately 100cm.
3. Reverse trigger mechanism, which allows the overall length of the gun to be i.e. 90cm and the effective length (band hole to last spear notch) to be 100cm or more.
4. I would suggest using Iroko ([ame]http://en.wikipedia.org/wiki/Iroko_%28hardwood%29[/ame]) It is relatively cheap, very good looking, easy to work with, harder than mahogany, and is very well suited for use in water (I've built two iroko guns so far and none of them has shown any problems for two years of use). Don't laminate two types of wood. They will wrap differently and will delaminate eventually. The handle can be made of any type of nice looking wood as there is no stress in it and there is no need of so much strength.
5. Squid-shaped body with the widest part right in front of the handle where the reel is usually attached. This is the part of the gun that needs to be most stable because it is the centre of rotation of the gun. The bands should be sitting as close as possible to the shaft (when you turn the gun upside down you shouldn't see any bands showing outside of the gun's body.
6. Not enclosed track. It is overkill for a one-band gun IMHO. Simple "U" shaped track is enough. There could be several deeper points inside the track for decreasing friction.
7. A special place (some sort of a grove) for the monoline on the bottom side of the gun, so the monoline doesn't run freely from the muzzle to the line release.
8. Sharkfin shaft with the last shark fin as close as possible to the but of the shaft.
9. Ergonomic handle with thumb rest.
10. Two places for adding lead for balancing: close to the muzzle and in the handle.
11. Camouflage patterns based on red colour.
There are a lot more details that I can picture in my head but I cannot explain well in written English... But I guess if the craftsman is capable of doing all this we will have a hell of a gun for a prize
I hope I win it.