Any recommendations? What equipment should I buy?
Most of the people working on spinal cord uses the Narishige setup:
Do you have any thoughts about the spinal system from David Kopf?http://kopfinstruments.com/product/model-980-small-animal-spinal-unit/
They are pretty similar, but the Narishige's holders are sharper and thus may offer more flexibility and a better grip on the spinal processes of mice of various ages.