Hi Sarah,
3 services/year is very little.
I work in a rural community 1.5h drive (one-way) from Hobart, and do the trip up once a fortnight - it is a real hotspot of foot disease and i'm really fortunate to have managerial support for this. Do you have regional data/statistics on incidence of risk factors/foot disease in your population? That might help with angling for increased services. Good luck - let us know how you go!
Pam