My Husband dosen't think this works, but it is possible to set up your rear view and side mirrors to eliminate blind spots when people are passing you. You end up with the side mirrors moved out quite a bit, you no longer see the side of your van, but you know where that is. If you set it up right, you see a car in your side mirror before it leaves the rear view mirror, and you see him out your side window before it leaves the side mirror. Usually I set this up on the highway when folks pass me.
The conversation mirror might help too, I don't have one (LX) but I have a similar baby view mirror that is helpful.
I haven't had the A pillar problem with cars coming into intersections being invisible, my biggest problem is when merging onto a highway. I normally check mirrors and then look to the left and back out the windows to see if there are cars in the lane I'll be merging into, and the protrusion of the B, C, etc. pillars into the van all line up and make that difficult.