With fluoro having the best abrasion resistance of all the lines out there, I'd go that way. However.....there is a big difference between fluoro used as a main line on spinning reels and fluoro leader material. Although it it a bit expensive, go with the 25 yard spools of actual leader material instead. Much stiffer and even more abrasion resistant than main line fluoro. I wouldn't worry about the pound test too much. Fluoro is known for it's invisibility in the water, so you can get away with say an 8 lb. test leader in your case. Just use an Alberto knot to join the two and you should be just fine.
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