I'll add comments for the sheets, specifically the main.
I will use the boat only for pleasure.
To me pleasure sailing is when the wind is howling and two points of sail. One, closed hauled, how long/how far can we fly a hull without touching the water. The other, a screaming reach, trying to set a speed record. (This may not be you now, but in time I'd bet it will)
When racing we don't want to do a lot of "sawing" the main (in and out), as we're trying to maintain a constant attitude and carry speed. For me, when playing, I'm constantly fiddling with the main.
I'd do some research on yacht line (as Jamie says, specifically for use as sheet or main sheet) find what the options are and spend some extra money there. You can get some smaller diameter stuff that will whizz through your blocks or some big dia. puffy line that's easier to grip. There is also some that won't soak up a lot of water.
Just my two cents.