Got this sorry looking Super Neo 29 control panel frame - looks like they’ve sawn through the back of the frame to open the locks 
Getting a replacement is proving difficult, so going to attempt some sort of repair
Was thinking I could bridge the underside of the saw hole with some ABS plastic and then attempt to build on top with plastic filler, then sand until it’s level with the rest and paint.
If it was flat on top, it would be fine, but have to try and replicate the ‘lip’ that holds the instruction strip in place
Any ideas as to how I could get this looking more presentable?

Getting a replacement is proving difficult, so going to attempt some sort of repair
Was thinking I could bridge the underside of the saw hole with some ABS plastic and then attempt to build on top with plastic filler, then sand until it’s level with the rest and paint.
If it was flat on top, it would be fine, but have to try and replicate the ‘lip’ that holds the instruction strip in place
Any ideas as to how I could get this looking more presentable?