Don't worry, lots of here have got caught up in "major repairs" that were supposed to be minor. At least you get the satisfaction of fixing it yourself, I hope. Besides, it is now customized for you.
I have done a complete roof, including new wood, and new side wood on an rv. A lot more than planned, but that is the way it goes.
Again, welcome to the forums!
Mike and Carla
1998 42' Overland Larado Diesel Pusher
On the road - here and there - Full Timing