Most of what's mentioned in the OP is pretty irrelevant with regard to the decision on whether or not to run tubeless.

Would you flat regularly, otherwise? This should be self-explanatory - if you would flat regularly, you'd benefit from tubeless.

Is this a bike that's going to be ridden pretty regularly? If it's a bike that'll sit idle for long stretches, I'm not a fan of the additional upkeep of tubeless - either you're draining the sealant before shelving the bike until you ride it again or you're letting the sealant pool and dry out in the tires and you'll likely have to add more when you take it out again, anyway.