Reporting back on our experiences -
We had two groups travelling at different times.
Group one did a private transfer with Speedy's from Trellis to VG and Speedy's van took them to the dock. They were first off the plane and first thru C&I, it was quick. The older of the two definately would not have enjoyed the walk.
Group two was picked up as part of our boat day. The Captain docked at Marche, we had drinks until their plane landed and meet them at the airport. It took 1.5 hours for them to clear C&I. We walked back to March together, with my husband and I handling their luggage.