Wakeboard pylons or of the sort?

My father has a celebrity and it has the ski tow hook on the back of our boat but it is low. we recently started wakeboarding, but it being low was never a problem during skiing but for wakeboarding when we try to get air it pulls us down and it is difficult. We have seen poles that can extend it up but the only thing i can find is ski pylons which are really really expensive. Any help?