Hey, im a qualified beauty therapist so heres some help.......
Q1) all your eqipment wil be available from your local salon sevices. any tools should be throughly sterilised in barbacide and then put into a UV cabinet.
Q2) you could ask whether they use gloves for day to day work e.g. washin dishes, gardening ect..., also what type of hand lotion they use or if any at all, whther they file there nails and trim regularly, if they use cuticle lotion to keep them soft, whether they bit their nails or worse their cuticles!
Q3) to prepare u need a file, buffer, buffing cream, cuticle remover, cuticle oil, cuticle clippers, hoof stick, cotton wool, nail varnish remover, non acetone for light colour nail polish or if a more stubbon colour e.g. black...deep red u will need nail varnish remover which contains acetone. for the deluxe treatment u wil need massage cream, and a parafin wax heater with mitts.
Hope this helps Private message me if u need any more help 
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