Custom PC chassis

I am trying to design a custom wall mounted pc chassis, but am struggling to obtain measurements for different parts. If possible, please could someone let me know: - Measurement of 3x 120mm fans, and screw hole placement - width of fan screws - Measurements for ATX motherboard, and where to put screw holes - where to put screws for a vertical GPU mount - size of a PSU mount - how much space is required for water cooling pump