I clearly did answer all your questions, if you actually read my answer you'd understand this.you didnt answer the second question, i want to MODIFY THE CASE to suit other boards, all i want is some measurements so i can edit it in blender.
Regardless I will elaborate, you cannot modify the case to fit other models. With other models of PS2 Slims, the motherboards take up the entire XY footprint of the original shell. There is not a way to fit that in this project. You can't trim down the motherboards either since they don't trim down much smaller at all.