Understanding collisionboxes in HL image - Bleach: Zanpakutou Senshi mod for Half-Life

Test of trying to render a collision box. It struck me that simply asking for the box to be rendering the offset didn't work, because the render needs to know the origin as well. The numbers i used were simply to verify that i was right. However the lenght almost fits. There clearly is something wrong, perhaps the offset of the model in 3dsmax or the local to world coordination in HL1.