While that Sony piece of kit probably can do some cool things, 2950$ without objective/lens, seems rather expensive. Also 8.6 oz / 243 g (Body Only) don't look that light to me.
I'd probably go for some Sony Experia 10III[¹] or upwards, for no more than 300$ at 170 g (unmodified), and strip the hell out of it. Does it need a display, all the parts of the case, and so on? Can can I use its GPS, and pipe it into the flight controller, instead of having to rely on something more powerful and heavy, power guzzling?
[¹] because https://xdaforums.com/f/sony-xperia-10-iii.12225/
If you use ground control points, GPS accuracy isnt a bog deal, but im willing to bet the standard GPS puck still gets better.
I dont know much about the weights involved, but hardware surgery was not interesting to me.
Keepbin mind tge guys starting at DJI and youre proposing stripping dowm a camera