Custom Mod for Open Cart

Hello, We are looking to make a custom mod for Open Cart, This would be for signs and labels made. The buyer would select a size of material - pre made sizes, Would then select from a drop down menu the color of material, Would then have an input box where they can put what they want on the sign or label. The preview box would change as they select the color of material and as they write in what they want, Let me know if you need more info. Looking to get this started ASAP! Thanks,