Give it a go, if you dont finish in the holidays due weather, you can always do the last few flights on weekends can't you?
Stay local so you can continue if this happens. Speak to the school you want to go to about what you want, and see if they can provide an instructor and a plane often enough for you to do it. Check their booking schedule and speak to students there to get an idea of how flat out the staff and the fleet are.
Good luck
