I need a web designer / developer

I need some changes in exiting websites taht is built in php . The details are below and let me know your cost also if you are not agreed on mine .


We have cost calculator and other functionalities like where professional or service provider can enlist himself . The task is to make only the calculator section in this domain - nothing else .

The functionality of calculator is almost 80 percent there . The admin can add calculators under specific categories from backend . For instance the calculator - install a faucet - can be added from backend under bathroom category . What , however , missing is the category appearance in the interface or front end . That is to say , when a calculator for above (install a faucet )is added it does not appear under the “bathroom “ category . All calculators are appearing under single categories like below .

http://upkeep.homeadore.pk/frontend/calculator.php

Second , since cost calculators will be the only thing in this webiste , the homepage will be arranged accordingly . To be precise it should be like homepage of following website where various calculators are appearing under specific categories in the homepage .

www.fixr.com

In above when a user goes to a calculator he should be able to find sub category of various calculators there also opening in next page . This is also needed . Subcategories of a calculator cannot be added currently from backend . Only categories can be added . Like in below link under the architect calculators following subcategories are appearing .
https://www.fixr.com/costGuides.html#group_28


Last is Addition of comparison cost guides .
https://www.fixr.com/comparisonGuides.html

1. Making the interface similar to fixr.com including homepage categories and subcategory page .
2. A calculator appearing in specific category can have subcategories opening in next page . Remember a calculator can be added under specific category but it cannot have subcategories in current version of webiste from backend .
3. Comparison cost guides addition .