I think there should be a hardwire kit for the stick up cams.
The only thing that it stopping me getting the stick up cam is that you can’t hardwire them. Where I want to mount them is in a location where there are no sockets and the battery versions specs aren’t as good as the wired version and being inside there is also no option for solar panel if I were to go battery.
You have made a hard wire kit for the spotlight and I think it wouldn’t take much to make the same for the stick up cams.
In fact though I have been told the spotlight cam hardwire kit is not compatible with stick up cam if they both as standard plug into a normal socket I see no reason why this wouldn’t be compatible.