Magento modifications .

1) items over 75lbs to be FREE SHIPPING, instead of 100lbs 2) NO SALES TAX OUTSIDE OF NEW YORK STATE , FOR NEW YORK RESIDENTS TAX SHOULD BE 8% on products 3) REMOVE INTERNATIONAL SHIPPING OPTION 4) during guest checkout, it is not offering Google checkout as the payment choice. This should be fixed. 5) we recently installed the local pickup extension. However we would also like a map tab with locations to be displayed when the client is viewing the products. To see an example of what I mean go to this link [login to view URL] then underneath the products their is a tab that says "where to buy" when clicking it all the locations with a map appears...could we do something similar for his site using the already installed local pickup extension.