I'll post the pics here, maybe it can help members in the future as well.
This is where I cut the tub out, you can see where I notched the frame (the first time).
Here is a better shot showing the relation to the leafs in the stock location
Shot of the tub after welding before body work. I sat the tub on top of where the inside of the frame rails are under the trunk floor. This way they tub never would or has gotten in the way. It turned out great for me after I had to do a little more work on the frame rail. I wasn't able to get one solid strip to fill the gap from widening, so I had to use 3 pieces.
Under side of the tub, I didn't spend very much time "dressing" the work up under here, just made sure there wasn't any sharp edges that could cut a tire.
Frame rail notch, gives a better view to explain where I placed the tubs as well.
This is how it ended up after a little body work. I keep meaning to order some spatter paint from eastwood, but haven't got around to it. The aftermarket tubs have this positives and negatives, but I do like the stockish look for the Ventura.
Just to be clear, this is the outer area I was talking about. As you can see there is a lot of area to be gained. I'm half tempted to cut it out and replace it this weekend before I put the new rear in. I guess it will depend on how much I want to work,lol.