I didn't have any real trouble with this build, but I did have to do some significant filing on one of the camera cage panels to make it fit into the main frame's slots. (Not a big deal at all, though!)
My build has been flying great: O4 Pro, Goku AIO, VCI 1605 3800KV motors, and GF 3520 props. I've been liking the 850mah Dogcom's with this...
One issue for me with my final build: the O4 camera cage's front bumpers (in the "Your Way" TPU kit) didn't allow enough clearance on the sides to add an ND filter on the camera lens... so I had to remove them after I took this picture, and my camera feels pretty vulnerable now when I'm flying. YMMV though!