I searched for a case for my PRS Bernie Marsden signature Les Paul model for a long time. This guitar doesn't fit a Gibson case, and the internet is full of advice of how to modify other guitarcases to make them fit this guitar.
The Thomann E-guitar ABS single cut fits perfectly, and apart from being inexpensive, it is very sturdy, well made and lightweight. I am sure it will last many years.
The "Thomann" badge comes off after a few seconds with a drill, if you don't like that.