Be wary of being talked into spending gazillions on 'custom' made/moulded/fitted carbon fibre insoles. Had Plantar Fasciitis quite badly and physio suggested an appointment with a podiatrist. He tried to talk me into parting with hundreds for these carbon fibre things. Turns out a pair of 'super feet' insoles were more than adequate and haven't had a problem since (touch wood).
(mind you - I know nowt of your condition and you may be best following your podiatrists advice...oh hang on).