1st and foremost...upgrade the mast base to the captive style. Murray's has the kit (it's probably even be here on catsailor). It comes with a new dolphin striker post, new mast ball, and new mast base. Solo raising without it is much more difficult.

I have a friend that raises his solo although I've never seen him do it (I always help when I'm there!). He puts a step ladder at the back of the boat to support the mast while he puts the base on the ball (and the pin in place to keep it there). He then runs all the rigging, hops on the trampoline, and steps it in place. He has a line that he measured just right that he hooks to the eyestrap on the front of the mast to hold it in place while he jumps down to attach the forestay. Same for reverse.