Well its complete! I actually didn't wind up removing the front columns. I did wind up fully removing the back pillars. I was able to slide the headliner back in and under the front pillars.. it actually worked out nice, cause then it held it there while I ran back to the back of the car to put the two main pins back in.

Putting the back pillars in did take awhile.. It helps that I was able to just sit in the trunk area and take my time matching everything up.. I had one side almost completely in, it was just a little "off".. and then I realized that the black pieces where the seatbelts come out of, had a little plastic piece that was supposed to mesh into the pillar.. So I wound up taking it all back out and re-aligning the pieces all over again. It is helpful to leave the back brake light access panel off, it allows you to reach in and align things a bit better.

The only part that didn't turn out absolutely perfect was where the ceiling goes into the front pillars. Due to the complex angles there are some very small wrinkles(the glue set quicker then I expected and it was too late to fix). Luckily most of the wrinkle is tucked into the front pillar, and the rest is obscured by the sun visor.

I'm extremely happy how it came out.. no broken plastic pieces and being able to see out the back window were my goals.. Both of them were accomplished!