I've equipped all the components necessary for comfortable flight and recording, and managed to keep the AUW155g.
I chosed the Nano3 frame, the carbon version of the long-range Rekon3 drone that uses a 18650 1s battery.
Despite being lightweight, it features a 20x20 mount in the front and a 16x16 mount in the rear, with ample space on top for battery placement.
This frame offers good maintenance accessibility as well.
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It looks like your AIO is so long you can't fit the rear standoffs, have you found a solution, or are you flying it "with the tail-gate down"?
As you mentioned, I have removed two of the rear standoffs as they do not fit. Additionally, since this AIO is elongated in shape, it is important to note that it will interfere with the center standoff if not mounted rotated 90 degrees. I have fixed the bottom plate and top plate for flight using the four standoffs in the front and middle.
I added 2 photo