Magento evoucher delivery fee customisation

Modify current evoucher module whereby allowing us to customise each promotional landing page with different delivery fees 1. Allow for different delivery charges based on each deal (each landing page) There will be 3 different delivery options a. Free $0 b. Flat delivery charge e.g. $10 c. Delivery fee based on State (8 states in Australia) Each special would only have one of those methods e.g. if well sell a pillow delivery may be free because item is small however if we sell a duvet then item may be flat $20 delivery fee but if we sell a bed mattress then then delivery is expensive and therefore we need to charge more to some states based on location Want to allow setup of handling fees to work with any preset shipping method and it will be applied to products using coupons only