It came with tubes in, but am I safe to assume that the rims are suitable for and that I can fit tubeless?
LP you have to make up your own mind on this one as we all do. I wouldn't presume to advise anybody on a safety matter for obvious reasons. I do like to debate it though. This particular debate has being going on for 30 years now so there's little prospect of a definitive concensus anytime soon.