Zoe:
First thing to check into is the PIN at the mast deck collar. Remove the boot around the mast base, then remove the hose clamp, then look of a steel pin that goes thru the deck collar and thru the mast. You need to loosen all standing rigging and then push this mast pin out first before pulling the mast.
Then at the base of the mast, you will find all your wires connected together with crimps, or but crimps or a junction box. Take photos and label the wires and then start taking them all apart or cut them apart. When you pull the mast, these will need to be pushed into the hole in the side of the mast so that the mast can be lifted up thru the deck collar. BE VERY CAREFUL TO NEVER HAVE YOUR HAND UNDER OR INSIDE THE MAST BOTTOM IN CASE THE CRANE DROPS IS. It is very dangerous and all this work needs to be done by the pros who do this every day. Stay clear.
Once the mast is pulled and on the ground, you will push all the wires up into the mast via a hole on the side of the mast. The bottom of the mast sits on a raised mast step that is bolted to the keel. This raised part goes inside the mast when it is stepped.
Congrats on buying the Ip 40, that is a great model.
Where are you trucking from and where to????
PS:
I have trucked out IP 35 and I have pulled our mast 4 times or more....
Hayden