Congratulations on your new fur baby! Enjoy getting to know each other
One of my fondest memories of Cadmium is when she first started to trust me enough to climb onto my hand, so the patience is well worth it.
I second suggestions of hamster taxis - I haven't had to deal with cage aggression, but when I first got her, Cadmium was very nervous about being handled, but would get into a mug happily.