i found a similar thread that is basically the same request that i have. I am customizing a resource pack for myself personally, not to distribute, and i need someone skilled enough to change the minecraft hunger bar to steaks and add a light shading to the xp bar. My only request is to keep it 16x16! Thanks!
I've posted the same request as you yesterday and since no one responded, I've tried something by myself. I've took my personal gui cause I can't pick yours, so you will have to copy what I've done and edit your gui by yourself, sorry. You can find it here.
If you need anything else, just tell me !