Magento - Customisation

Hello.., My project description is like this: 1. I want to create invoice on /checkout/onepage/success/ Page. invoice contains some custom fields which is will provides in attachment. 2. I want to add custom fields on emails templates Which is provides in attachment. 3. a little changes. This is very easy project. Please serious programmers bid. I want this work project completed asap (1-2 hour). If you magento expert then bid. I want long term relationship. After this complete I want to make theme for this store. - Thanks - Regards - Esoft Technology