Long Term/Annual Parking at Toulouse Blagnac Airport

When we lived in UK, we travelled to France every few weeks but are now living in Australia and visit France twice a year for a few months. In those days we paid an annual fee to park in P1/P2 and were able to access our car at Blagnac 24/7 but no new bookings are being accepted for 2019. I’m looking for advice for alternative long term (3-6 month) parking areas close to Blagnac, which give access 24/7 or at least between 0600 - 2300 with a shuttle or close enough to get a taxi. Appreciate any advice you can give from experience and satisfaction. Thanks