[cypher]

Is the wheel set directly on the base of the detolf with no substrate you could move under it? If it is & there's no way you can fit the wheel in with the lid on then I would put her back in her old cage just for now rather than risk using the detolf without a lid & see if you can make a deeper lid as buttercuplols suggested. As she's only been in one night changing back to her old cage for a while shouldn't be stressful for her then you can give her time to settle in the detolf when you've got everything set up & working ok.