Same design as my hub design but this is for the buffer if you have only one AMS unit, pictures are just of the mount as i have the hub attached now and i am printing currently but this is what i had prior to getting two AMS units.

as with the other version i use heat set inserts to attach the spool holder and the buffer and this is designed for the arc enclosure so would need to tinker a flat design for the P1S or other enclosures