Replaced z coupler now need original nut holder

so i had banding, and i tried a few fixes but nothing seemed to solve it.  i bought an aluminum flexible shaft coupler you can get on ebay for a few dollars to replace the terribly designed pressed z axis coupling, and now while the first 8 or so layers are great, the  layers start getting progresively worse and worse(banding wise) after that and progressively delaminate easier and easier, and i think its due to a previous fix i installed (that slightly allows a nut to move only in x and y axis) coupled with the flexible coupling.  I unfortunatley discarded the stock z axis nut holder.  The question is does anyone have the files to replicate the stock z axis nut holder? i dont need any anti backlash designs, just the stock simple one.  its a solidoodle 2 pro wood platform.