Wood workers, demolition experts?; I want to put a high explosives box in my Chrysler

Guys, I have had an old wooden "high explosives" box hanging out in my garage for the last 15 years and I got the idea to repair it now so that I can use it to carry/contain supplies for traveling (a quart of oil, trans fluid, paper towels, etc.). My problem is that the bottom has rotted out (before I got it) and there is some dry rot that I need to address, so I thought I would seek some advice from guys experienced with repairing wood.
My basic plan is to glue the finger joints together...

Wood workers, demolition experts?; I want to put a high explosives box in my Chrysler
Author: BigblueC