gave it a go on q3dm17 as well. made a great job with the geometry but sadly it failed with all textures except for one asset (kmlamp1). the rest I got errors like “Texture for shader ‘textures/base_light/ceil1_26’ not found”
still, to convert the geometry it’s great 
btw is it me or is q3dm17 feeling smaller in unreal compared to quake3? if you play it with shootergame it kinda feels like the scale is different