I have found that the Uniden 510XL or 520XL is a good fit without much mods for the ashtray. All I needed to do is remove the tray and bracket, trip the side mount and the lip of the top horizontal piece flush. The CB mounts flush with dashboard and looks like a natrual fit. Attached is the photos and one with red arrows showing where I trimed and how much.
Let me know what you guys think!