Yamaha Waverunner Jetski 1200 Spares Or Repair

I've done plenty of hours with this ski, had been very reliable and great fun! But unfortunately it seized on piston number 1 this summer due to a fuel blockage in the carburetor. Was going to repair it, but I no longer have the time to sort it. So here it is. It turns over on the button now because I removed the bad piston and all the broken bits.

Would probably run on the remaining 2 cylinders.The other 2 cylinders look to be in perfect condition.Other than that one of the seats needs a new cover.It's got a few scrapes and dings as you would expect for the age. 2002.Trailer is in very good condition with wide sand tires.Battery only 4-5months old.