i need a wordpress plugin completed

i have a site and i need one an already started wp plugin completed the last guy never completed. WHAT I NEED to calculate the value of type of iphone and or android , carrier one of the major ones ATT Verizon , Sprint , T-Mobile , and unlocked. and then the condition of the phone like new, good, broken , non-working. then out put the value im using wordpress with woo themes my website is icareneeds.com. i have tons of sample code that i have gathered i dont need the website build just the plug in thats already been half way started. i can do minor adjustments just need to the code to be placed in. MUST WORK WITH WORDPRESS. sample websites are [login to view URL] [login to view URL] if someone clicks iphone it will give the 5 iphones out now with pictures they click on the one they have then it ask carrier with i prefer a pic of the logo such as ATT Verizon etc. then condition is it like new good broken or non working. then give pice and ask if they want to proceed which will lead them to a page of my choice? basically the second page will ask them for their paypal email and give them shipping information and contact info please go to sample websites and go through the steps so you can fully understand what im looking for steps on the websites are simple 1. select either type of device (iphone, android) 2. then some sites are different in the order but next will be carrier ATT VERIZON SPRINT T_MOBILE UNLOCKED. 3. Then condition LIKE NEW, GOOD , BROKEN , NON-WORKING. 4. Then give a price based on the answer given then direct to next page of my choice most likely a contact page that I can create. Such as paypal info and shipping