broken heel advice ...

[Adrian Levi]

I have this carved German that I recently acquired with a broken heel .

I'm not quite sure how to approach this repair for a couple of reasons .
Firstly when I sit the neck into the mortise it sits flush on the neck block and visually lines up with the end of the heel that is still glued to the bass .
But if you see the pics the remaining piece of heel is not glued onto the neck block as there is a +- 2mm gap. I have managed to soften and remove as much Gorilla glue as possible ( as this is obviously a failed repair ).
I can get a blade underneath the remaining piece of heel and get it to touch the button , so the remaining heel is glued to the button and the sides only !

Hopefully the pics will give a clearer idea.
Any insight or advice would be great thanks ....