this might help in conjunction with using the working pivot - http://www.scriptspot.com/3ds-max/scripts/align-pivotpoint-to-workingpivot there's also - http://scripts.breidt.net/#3ptalign and - http://www.scriptspot.com/3ds-max/scripts/align-pivot-to-direction (or use blender, so simple in there) ;)
Thank you, Im going to try those scripts. Im used to work in AutoCAD and everything is so precise there, I dont know why 3dsmax doesnt have an easier way for doing this.