question about my boat

im from croatia and new in wakeboarding. i have a board, it is Obrien custom beginners board, and i also have a Ven 470 fisherman boat. it is about 15'6 and 880lbs. it has also 50 horse power engine, and it has prety good start and top speed about 30mph. i can waterski and monoski without problem. my question is: is this boat fine for wakeboarding, considering i'm on sea, not lake (and sea is heavier then water so it should be even easier). i heard that rope should be attached to boat in diagonal position (which helps you to jump), but on my boat i can't attach rope to some high place! i can only attach rope a little higher than engine is. i hope i was clear. sorry about bad english!
here is a pic:

Here are some basic ideas Pilon pic sketch.bmp (69.2 k)

And here are the details Pilon pic detail.bmp (69.2 k)

(how do i get the pics to display onscreen?)

if you're having fun, any boat is great. that tower isn't stiff enough to tie the rope to? if it were my boat, i would give that a shot... and your English is fine!

There are a lot of forces involved when pulling a wakeboarder, so I wouldn't try pulling from that tower untill you reinforce it. Do this the same way you would do the front lines in the drawings i did. If reinforced frontwise, i'd think that tower would probably handle the side to side strains. Bun then, i don't know how its built or what its made of. If it were me i'd take the tower off and put in the pylon. I put in a pylon the same way on my baot and it works as well as any tower.
Well, whatever you end up doing, have fun.

buy a inboard and find yourself a lake with some glass.