One downside of this case is there is no middle row of ventilation slots and using the low profile fan meant that it was not really getting any fresh air, so CPU and mobo temps were running low 50s C with cover on. After being on awhile it was just recirculating warm air.
So I started looking at the Wraith Stealth stock cooler again and only needed 1-2mm to fit. As I looked further, I noticed that there were spacers on the screw tabs and these were about 3mm and a subtle but different color of black than the fan housing. Applying a fingernail and these easily slid off, only weakly glued with a gum rubber apparently. Re-mounted the Wraith and it now fits with 1-2mm to spare, photo shows the spacer on lower right with gummy residue. Still quiet except for initial boot when fans max out, but silent otherwise. So far about 10-15C lower temps depending on sensor, high 30s to low 40sC.