My two pennies worth.
Don't, don't, dont do it!!! Get your licence first! Then as others have said, you will then know what type of flying you wish to do. Also, you will have learned a lot about flying and its associated costs from the inside. I speak as someone who has owned aeroplanes and boats in the past and they ALWAYS cost you more than you think they will.
Good luck with the PPL its worth it.
Meldrew.