If you are still having hassles with that tubeless conversion, give me a shout, I have found a cheap way to solve 99% of the tubeless problems. I have just done my wheels again and pumped them up with a floor pump and no sealant!! I used the standard tyres (not tubeless) and they went up straight away. They did leak because of the thin side walls. When I switched to tubeless tyres (kenda Karma) the tyres stayed hard with no sealant for 2 rides, with zero hassles. I did not use sealant just for test purposes, but would not recommend doing this!!