Hi,
I am have understood you need and will design best site as per your need. I am expert developer, you can read reviews on my profile.
As per your requiremet, I will create a membership website where users can post their shipping needs for free or after paying some value and delivery companies can contact them only if they have purchased a mambership. You can display noral listing for paid or unpaid members, or can hire post/orders availabe for only paid members.
Both recurring or onetime membership, I am expert in that..
Feel free to discuss.
Thanks