To make a jet drive work in your hull which looks similar to a Chris Craft ski type of hull,
you would have to modify the bottom which may be more work than you anticipated and
may also weaken the keel of the boat. But if that is what you want to do, you will first have
to remove the deck of the boat to install some reinforcements and cut a section of the bottom
out for the installation of the jet drive, as it needs a "Flat Surface" for the water intake to mount
to. See the attached picture of a jet boat bottom to see what I am referring to.