Here are some photos of my modified WPB Cuben Packa. With all my modifications (custom pack cover, larger hood, additional length) it weighs 15.2 ounces. Given that my eVent Packa (unmodified) weighed 17.3 ounces I was pretty happy). A really nice BPL’r sent me some replacement elastic cord and cord locks to replace the ones on my WPB Cuben Packa and I think that will save me another ounce or two when I get around to it.
I stuffed a couple of pillows into the Packa. This photo shows the “pack cover” rolled up and secured to the side when the Packa is being worn with a pack:

This shows a closer view of the rolled cover:

Here’s what it looks like with the Packa closed up and laying flat on the floor:

And one of me wearing it in “jacket” mode:

And a slightly closer view:

I hope this helps. What I was trying to do (and succeeded) was to keep all of the existing Packa functionality while making it a little more comfortable/usable as a regular jacket when I don’t have my pack on. I never liked how the pack cover portion, when you weren’t wearing your pack, would billow out in the wind or get snagged on branches and the like when answering nature’s call off the trail. I also found that it would collect rain when I didn’t have my pack on. This mod, where the pack cover is completely enclosed, solved that for me.