Fitting the roof is the most challenging part of the project. I'm not using a pattern, so I'm just test fitting panels and clipping them up one at a time.

A hot knife is a "must-have" tool to prevent fraying of cut edges.

The tent body is suspended from these sleeves.

The sleeves are continuous to make pole insertion easy. UPDATE:
Do not sew the seams for the sleeves tight like this double row of stitches that you see in this photo, the poles will not come out once the tent is assembled. Sew a seam at the far end of the sleeves to hold them together during panel fitting. Once the roof is completed, the only thing holding the sleeves together are the seams from the roof panels. I finally left one seam continuous and split the other open to bridge the continuous sleeve.

The transition from leg to roof arch. I didn't bother making an angled sleeve. I'm okay with some puckers in the final product. UPDATE: Put darts in now and make your sleeve angled. Also sew a hem at the bottom of the pole sleeve that is even with the bottom of the angled piece of aluminum pole. This is also a good time to sew in your webbing and tie down rings for the guy lines.

Panel going up for a test fit.

Binder clips work great for my "trial and error" panel fitting method.

Two opposite panels pinned in place. A lot of the sag will come out when the adjacent panels are installed. I'll also tighten the whole assembly by sewing above the pins. UPDATE: You might run a line along the lower roof line between each pole to drape the roof panel across during fitting. This would make fitting easier and help to avoid puckers in the panel.

Pins visible from inside the tent.
I'll hopefully fit the remaining roof panels and sew the roof together tomorrow. It will be nice to transition to straighter walls!