https://sites.google.com/site/mikefocke2/BOXSTERConvtopconversionPARTIformatt.pdf?attredire cts=0
I also used this and removed it under 2hours with several breaks to reference pictures and read steps.
It takes a bit of wiggling. I removed my plastic top and frame on my own and didn't scratch anything. I'm short and not strong either . Take your time and it will come out