A few other things to think about...

Try using weights at the bottom of the rod to take away some of the "tip weight" if that is a problem.

Also, I don't like spinning reels a whole lot but I'd highly recommed using one in this case. With a rod that long, you might struggle keeping it out of bushes and trees so it will be easier to flip something light with a spinning reel instead of "casting" a baitcast reel.

For me, 13' seems really long. I think I'd spend all day untwisting line off the tip.