I like the concept of the of the spool holder that Toolman207 have designed. It didn’t requires modification to the machine and the original parts could easily be put back if needed.
I designed the parts so that they can be used on both sides of the printer.
The part Inventorspoolholder need to be printed with support, the other parts can be printed without support. For assembly you need 8 screws and nut per side, M4 x 15mm insert hex bolts and M4 nuts in backing plate.