(OOC: A warrior, sure, but Zaeryl gets in under that amount. I'd imagine you could probably shift some of the gear onto Triton if it was a close call...
Actually, I just checked the Monster Manual, and the designers gyp you, no pun intended on Vanitri, by choosing from the initial monster stat array of 11 11 11 10 10 10 to not put an 11 in Strength for the Light Warhorse. If you want a Light Warhorse that can carry 260 pounds, I'll let you have one, but you have to knock down one of the odd scores in Dex, Con, or Wis. May want to note that somewhere too in case the judges or another GM gives you a hard time about it)