Pre-made HBP for Cube

Does such a beast exist or is it all DIY? I’ve been throwing one money into high temp thermal epoxy, broken glass etc. Just want something that works…

While the Cube is a derivative of a popular design, it appears that the build plate is not a “standard” size. I went with a 200x200mm heated build plate and matching glass, but the mounting is still an issue: I’m currently using binder clips, and the extruder crashes into them when homing.