All weather access for new build - North Kellyville NSW 2155

My builder has informed me that I need to arrange all weather access from the street to the construction site on the block due to the length of the driveway - approximately 16m in length. They have mentioned a gravel surface will do. I am curious to know if anyone else had to do this around North Kellyville/Kellyville area in NSW and who do I approach to get it sorted? Would any trades people that do driveways be able to do this? Is this an expensive exercise? Many thanks in advance.

Order several trucks of gravel in and smoothen it out with the bobcat?

I wonder why your builder is not capable of doing this, considering this is clear extra $$$ for him.

Get recycled concrete. It's normally the cheapest form of temporary access track and it helps reuse a waste product.
Ideally you want the access track cut to a level that the road base can remain and act as a base for whatever you will eventually install as a driveway. By the end of the build and all the trucks and vehicles that go up and down it's nicely compacted so it's good if it can atay.
Get a good bobcat driver in, he will be able to read your plans and get the levels right then get in the materials and shape it.

alexp79 I plan on asking them anyways but have a feeling it will be expensive get it done by them.

Thanks chippy, will have a look at recycled concrete.