Setting up manual shipping rates

We are finalizing a site which implements Hikashop. The client uses (and wants to continue to use) a pricing based on total cost of goods ordered. Below is how they currently charge customers. How do I implement this sort of shipping method into HikaShop???

Ground Service
$0-20=$2.50
$20-150=$10.00
$151-500=$15.00
$501+ $35.00

Alaska, Hawaii and Canada (Expedited Only)
$0-20=$2.50
$20-150=$40.00
$151-500=$60.00
$501+ $125.00

Expedited Shipping.(Lower 48 States) (In addition to ground service)
2-Day Shipping $20-150=$15.00
3-Day Shipping $20-150=20.00
Overnight $20-150=$30.00
2-Day Shipping $151-500=$25.00
3-Day Shipping $501+ $35.00
Overnight $501+ $60.00

All PO Box addresses going to Hawaii or Alaska can only be shipped by standard or expedited mail.

All Continental U.S. post office boxes can only be shipped by standard mail.

If you need an item to be shipped outside of our normal shipping areas please call for a quote.


Thanks in advance for any guidance or wisdom on this.

Hello,
The solution will probably be to create many manual shipping method and use the "Minimum/Maximum price" and "zone" restriction options of your manual shipping methods.