I recommend gluing the tail after inserting and screwing it into the correct position.

It is recommended to glue the tail after screwing.
I personally printed the original I3 Mk3 on Prusa

Osobně tisknuto PET na Prusa MK3 0,20 , infill gyroid 5% . ale nevidím problém tisknout na vyší detail či z větším infilem.