Welcome to our forum.
Long-Distance Relationships can be challenging; I take it you feel pretty strongly about this guy if you're willing to attempt it (and in a poly setting, to boot). I imagine there will be some drama from the other two ladies at first, but maybe it will cool down due to the LDR status. ? Only time will tell.
I hope you will enjoy your time on our site and check out lots of threads. Post any thoughts, concerns, or questions you may have. There's a lot of experience and advice to tap into here.
Glad to have you aboard.
Love means never having to say, "Put down that meat cleaver!"