We have one that we take with our 5th wheel... large and heavy. Hadn't considered it in the boat because of the size and weight. Since you will be traveling solo, I don't see why it wouldn't work. Generally when cruising, our cockpit is packed with other stuff, but we do carry two comfortable folding camp chairs (no foot rest on the chairs, but the aft seats in the 25 make a good "ottoman." :wink:
Also, since you will be using your Frontier to tow - do you have a bed cover for that? We have a solid fiberglass bed cover for our GMC pickup that allows us to take whatever we want and store it in the back of the truck; out of sight and reasonably secure. Just mentioning that in regards to the Lafuma chair... put one in the bed of your truck and see how much space it takes up.
Enjoy the outfitting... until July 15th comes around. Then, have a wonderful time with the cruising!
Best wishes,
Jim