I think it probably can be done, but it doesn't make sense from a cost point of view, by the time you buy all the parts you need you would be cheaper to buy a 3up.
I know, you already have this one, but if you think about it you could likely sell the one you have and buy a 2015 model they way you want it, it will cost you a little more money but yours is already depreciated anyways, taking a 2up and converting it will never be worth as much as a 3up from the factory, you have just modified it and most people will want to stay away from it in a resale perspective.
if you wanted a little more stability when driving you could add some R&D trim tabs, that will give you some more stability when you are underway, not going to help much with just sitting in the water though!
I know, you already have this one, but if you think about it you could likely sell the one you have and buy a 2015 model they way you want it, it will cost you a little more money but yours is already depreciated anyways, taking a 2up and converting it will never be worth as much as a 3up from the factory, you have just modified it and most people will want to stay away from it in a resale perspective.
if you wanted a little more stability when driving you could add some R&D trim tabs, that will give you some more stability when you are underway, not going to help much with just sitting in the water though!