Great, thanks again for your help, all ready to fit now once it arrives :)

Live feed to Purple wire in the plug
Negative feed + one of the switch wires to Green wire in the plug
Other switch wire to the Blue wire in the plug

I guess it is trial and error to see which one from the switch goes to the Blue wire unless one is black & the other a different colour :) ?

Sounds a bit easier than I anticipated now with your help :) :)

Sorry, the negative wire on the harness goes to the green Honda wire.  I can't correct my post.

As for the switch your right in that you have to remove it.  The blue Honda wire is positive when the high beam is selected and can be used to operate the control box which is just a relay.  The other wire will be the grounded and  it can be connected to the green Honda wire.

I'd suggest to go for a 7.5 or 8 N/mm linear spring (Ohlins offers 8 for the 150mm travel 19-20 models) and 15w fluid.
I'd start with 170 mm air gap and depending on your experience add or remove 5mm to help avoiding bottoming if needed.

I've wired mine so that my led driving only come on when the high beam are on.  When the lights are on low beam it is not possible to have the led driving lights on.  I did it this way so when I drive at night I my ding light will turn off automatically.  During the day i always ride with my high beams on to be seen by other motorist. 

Using the wiring harness you have I connected the red power wire (positive) to the violet wire under the right cowl.  The negative wire on the harness goes to the violet wire.  The control switch wiring has two wires.  These wires are used to operate the control box to turn the led driving light on.  It's basically a relay.  One of the wires will go to the blue wire on the Honda connector.  The other wire will go to the ground wire on the Honda connector (green wire).  The colour of the wires on the control harness will indicate which is the positive and which is a negative wire.  The black will be negative and will connect to green wire on the Honda connector.  The remaining wire will go to the blue wire on the Honda connector.   The only reason that it matters which way they go is because some relays use a suppression diode. 

Hopefully all that is clear.   

I've got a Shad 34 (I think, not exactly sure of the size), but the locking mechanisms are similar. It's ugly, but IMO both the lockdown latch and the opening latch are about as good as any for security. Compared to a Givi that I owned on a different bike, just as good. At the end of the day they all just make it a little harder to steal your stuff, not really stop it.
Cheers