Some spare HDD mounting rails compatible with Q510, Q520, Q910 and Q920 of the Fujitsu ESPRIMO Q-Series which are commonly available here or here. Spare part number: C26361-K1011-C40-*-Y369

Print without support in PETG or ASA at 0.2mm or less. Check your bridging angle according to the last image before printing! It should be perpendicular to the rail.