Well Dishy finally arrived, a full week after the estimated delivery date. Unfortunately, the roof mount, ethernet adapter and extended cable are now backordered until 4/25.
The roof is the only spot I can place the dish and I only want to make one trip up there. Since the mount is backordered, I got this one from Amazon to use as a permanent solution:
I can confirm that it fits the new Gen 2 square dish and allows the cable to be placed inside the tube, just like the OEM mount. It also mounts to the roof with 6 lag screws instead of just 2 for the OEM pivot mount.
I used this clamp to hold the dish & mount together:
It appears the 75' cable will work so I can do a permanent installation without the backordered parts. I will test the location before drilling any holes. All I need now is for the weather to clear.