only php-curl and regex., script for parse data, using cookie file edit via script with get correct page

hello, need to make modification on existing script, only php-curl and regex., script for parse data, using cookie file edit via script(there will be changed data for saved city) or another way for get correct page depnding on selected city, need to know how to use http traffic analyzators like httpanalyzer or wireshark or similar for make a fast research and find the best solution for the current task, see attached script which need to use for modifications. also please keep in mind we can make similar thing and already made many of them very easy just for some hours, so, it like a challange for you and test before bigger projects with us, please show how good you are with these tools and how fast your brain can make analyze of all variables for this task. In short the script must to get list of all items from DB or file or another source(csv, etc..) it is not important, important part is when it go to an item page and parse data and detect if item is prime and if it available and most important thing if it can be delivered inside the country no more than 3 days. Also use generated file with proxies(also need to add conditions for avoid wrong data from bad proxies). so at the end must be a fully working prototype with including all possible conditions for any case which can stop the script and avoid it(for example if bad proxy after three attempts just change the proxy and delete it from later using and so on), write your price, and keep in mind abou your price will be paid only when the script will work with list of proxies and never stop, we will send more lists of proxies for your tests, we use our own proxy generators for get only elite proxies, so it one of the conditions for check answer via proxies, also you will need to check different web browser agents($usrAgent="Opera/9.80 (X11; Linux i686; U; ru) Presto/2.9.168 Version/11.52") for analyze answers(also detect gzipped pages and make condition for correctly process it). Use these categories for tests: You can use attached demo file [login to view URL] or create your own. Antiquarian, Rare & Collectable(3rd page) [login to view URL] Arts & Photography(2nd page): [login to view URL] Biography(4th page, when press NEXT): [login to view URL] Business, Finance & Law(1st page returned after second) [login to view URL] Calendars, Diaries & Annuals(url copied from menu on main page with books) https://www.amazon.co.uk/s/ref=lp_266239_nr_n_4?fst=as%3Aoff&rh=n%3A266239%2Cn%3A%211025612%2Cn%3A507848&bbn=1025612&ie=UTF8&qid=1554433092&rnid=1025612