2002 GTX 4tec solenoid swap?


I was wondering if anyone can help me. I saw that someone post in an older forum that its possible to update the solenoid/starter relay and pair of 30A fuses so you don't have to use that sealed assembly that I currently have on my 2002 Seadoo GTX 4tec. A part that is now impossible to find Part no. 278001767

I am assuming the swap will allow me to use a "regular" starter relay like the ones I can easily find on Amazon? (the simple two prong looking ones?).

Is it a difficult task to do the swap? Or would I require a mechanic to help me?
I had a bad relay in one of my '02 skis, and SkiDoo suggested swapping in a harness from a 2003 ski. That worked perfectly.