As far as I can understand with your experiences, there is no problem with bringing the kit in the carry-on. As for the rest of the supplies, I can check them without a problem. If they are lost/stolen, it will be a bummer, bu will not be a big loss and I probably can find replacements locally (at a price, of course).
Differences in prices from here to back home are 6 to 7 times higher xD