Hi and welcome to the forums!
there is one way that I am thinking it could work with custom ui for the timer, that can be achieved within the editor without verse.
Create a custom widget.
Set that widget to the timer.
Bind the widget with viewmodels and bindings. to what you need.
This could work if all the ui of the hud message could be replaced for just the one in the timer.
I’m assuming that the timer, and the HUD message, are related.
So like you did on this one. You can add all the images and layout like you had in the HUD message or make a copy of it.
Then in that one, add the timer text, and the bindings.
Add this as the Custom UI for the timer, and that should be it.
The HUD message should not be necessary any more.
If this is not something that works out for you, and you need them separated, then yes we will need to use Verse code to control the widgets placement on the Z order.