I have found a solution to my problem.
The marina where we have the boat on the hard for the winter (brrrrr) has a seperate company with a guy who does fiberglass repairs and painting. He can't paint my swim platform as he has a 3 month backlog of work but he has offered to provide me with professional advice and all the supplies I need to do the job myself using Awlgrip. He is just finished a job painting a sail boat and he has about 1/2 a gallon of Awlgrip "Oyster white" that is left over and he has all the other Awlgrip stuff needed to do the job (second part of the paint, reducer, filler, granules for the non-skid). he said that he will sell them to me and offer friendly advice to do the job (his shop is 100 yards from my boat). It will cost me about $400 US for everything I will need to do the job. I consider myself lucky. I will take pictures of my efforts and post. I should have it done in about a month depending on weather (snow expected tonight, but high of 55 expected by this weekend).
In case things don't work out, here is another option:
I went to NAPA Auto Parts in Sudbury, Ontario with a paint sample and they mixed for me IMRON 3.5 HG Plus two-part polyurethane paint. It came out as an exact color match when I painted the side boards. It can be brushed or sprayed. It's a very tough paint and keeps its gloss.
You should have a NAPA up your way.