This is just a quick build log to show the fitment of the HDZero Freestyle VTX installed in the TBS Source One V4.
It's a bit of a "Frankenstien" build, because it's not how I planned it to go. I was going to put the VTX in the back of my AOS 5, because it has 30x30 mounts in the back, but I ordered a mipi cable that was too short.... So I got impatient and decided to put it in the Source One.

The VTX fits great in the middle, right above the ESC. Note this is a slammed build as well, with 25mm standoffs.
I had to spin the ESC around 180 deg and mount the FC in the back, but the original build had a 30x30 FC in the middle and the Source One only has 20x20 mounts in the back. So I took the 20x20 FC out of my AOS 5 and installed it in the back (MAMBA ESC to iFlight FC, so had to swap the current and TX pins).