Shopify website

Firstly I would like to inform this is low budget project so we would give preference to the freelancers having low budget bid and lets further move towards the details of project
Basically I have some requirement which I have listed below
The website where I need changes are -
https://www.redwillowfabrics.com/

1) When user upload image then a new pop up window gets open where three options will be present
A)Select your file and preview of the image -Image with scale should be present there...if we increase image size then we will be able to increase the size of scale in inches
2)Image should need to change with the pattern
3)In scale it for me option a image with default size will be displayed to user
4)Total- Quantity* base prize of fabric
5)When we do add to cart the image and the information filled by user should be stored at the database and we will be able to download all the data
6)Desize size - Scale it accordingly the design size
7)Fabric - It contains drop-down with default list
8) Quantity - It can be any input number ... according to this price will be calculated


All the features I need already implemented in this reference website
http://artofwhere.com/