The first thing I did was install the fire box door. What I did was just put barrel on end with the two caps facing up. Then place the door on the barrel so the lower ash and vent door (the small one) cover the small cap on the barrel. Open the doors one at a time and make an outline of the door opening on the barrel with a dark marker.
	You will need to make the outline a little larger so the door will fit in once you cut it out. As you can see in this and other photos I made a second line about 1/2 inch farther out. Then I used my air grinder to make a small slit in the barrel so as to get my saber saw in.
	Now with the lines drawn and the slits cut I just follow the line with my saber saw. It did a nice job of cutting the metal curves of the door outline.
	Here is the opening for the fire door once it is cut out. I needed to use a file to make the two holes a little larger, I didn't want to risk making them to big with the saw. Once you have the door in then just drill out the holes and bolt it in. As you will see in other photos it goes on easy.