then the 120 will be fine imho.
swap out the 2.5 liter and drop in a 3.0 (bolts right in) and gives you a bit more power, then have a bunch of props of various pitch on board for either cruising or water sports.
if that's true. that'd be something to look into. i think the 120 is rated at the crank, the 3.0's are rated at the prop. that would be a significant increase in hp. that'd likely be more than my 165 L6 is. i've never figured out what the prop hp is on my 165, but i'd guess it's less than 135 of the 3.0. the Nineteen is a light boat. so prop shaft rated 135 would be great imho.
I would just like it to be able to tow a skier, tube, or wake surfer with passengers on board. I guess five on board and one being towed. Or up to five or less.
imho, that seems optimistic. the boat is very weight sensitive imho. 4 is about the max people i like to take on board my Nineteen. if i put two of those people in the aft seating. the boat struggles to get on plane with high bow rise. with 4 people seated in the fwd 4 seats it's much better with much less bow rise and gets on plane pretty quik. but not as quick as the my normal load of 2 people. with 2 people the boat jumps on plane with little bow rise.
while i've never had the 120 version, from the experience with my 165, i'd guess that 120 is gonna be a little lame, specially if ya start adding some extra load of people let alone adding people while attempting to do tow water sports.
They aren't wood-free, more like minimal wood. The transom is wood but very small, not full width like many other boats. The deck has 2 wood covers, one for a ski locker and one for a cooler or fish box type thing. All 6 seating areas have wood backing.
i agree with this statement and have found it to be true.
hope it works out for you. they are dandy boats and i'd recommend them to anyone. maybe not quite for what you intend to do with it though. imho, the Nineteen is a great pleasure boat and it can do many things. but they are not specifically made to do any one thing great, ie, skiing, wake boarding, wake surfing, pleasure boating, fishing etc. imho, the Nineteen is best as a pleasure boat which is what i use mine for. they are also real good in nasty weather though they do rock and roll quite a bit in high surf. but i have never felt in secure in it. more like i have felt secure in it. most sea worthy imho.