Just had a great weekend at Peppercorn, but my starting problem continues

Once home it would not start again I took a look at the solenoid and found a weak connection so i striped back two wires that were in one sleeve and crimped a new connector on it, as I was tightening the connection I went a bit to hard and cracked open the solenoid

so the plastic part where the terminals are has broken.
So now need a new Solinoid ... but cannot see how it comes off the starter motor

it's on a air cooled 2.0
Van is parked in the street and I can't move it . Any help will be great .