keep the original plugs on the storm and off the storm switchgear -
get yourself some bullet connectors and a crimp tool
stick the wires where they should go.
you will need a wiring diagram for both bikes, or just open up the switches and see what is what.
should be a piece of piss tbh
might be easier than you think - looks to me like the blade just has 2 extra wires, top left and middle right.
very often you can pull the pins out of the plug and move to a different position, theyre usually just held in with a little retainer, like the clip inside a cable tie...
unless they are mouled plugs (doubt it)
you only need 2 wires for your starter - the blade's is a 2 pole switch whereas the storm is single pole.
i'm guessing 1 pole goes to the alarm or summat or switches both poles of the starter relay.
use a tester to find a normally open contact in the switch and use them 2 wires.
if you are lucky you could pull the wires out of the original storm plug and push the blade pins in the right hole - no need for the bullet connectors.
wiggle the wires where they go in the plug - if they move they will come out. (and go back in)