Let me know if this works. I have 14-2 (power feed) coming to a switch box (box #1). I then have a 14-3 (leaving box #1) going over to the other side of the room (not touching lights) to another switch box (box #2). I then have a 14-2 (light feed) coming to switch box #1.
If I land the 14-2 (power feed black) on the common on the 3-way in box#1. Land the 14-3 black/red as travelers to the 2nd 3-way switch over at box #2. Use the 14-3 white w/black tape on the common of the 3-way in box#2. In box #1 take returning white 14-3 (w/black tape) and splice to the black wire of 14-2 for the feed to the lights and then splice the remaining 2 whites (white from power feed and white from light feed).