Need an expert on opencart

Im the head of an online advertising agency. I was approached by a client who, among other services, needs to refine the site on opencart
Site - parista.ru/

There is a lot of work on the site, we want to start with 2 tasks:
1) Parsing 200 air conditioners from competitors sites and pouring onto our site
2) Refining the filter to ensure that there is a search for characteristics, now the filter is not working

There are still a lot of tasks, such as refining sections, refining the cards of goods, but we will do everything gradually

Im looking for an opencart EXPERT thats tasked with doing it or telling you what information is needed to work. So that there wont be any but how is it? I dont know, and I cant do that...

Specifically on the current 2m tasks, write what is needed for the work, how long and on the money ?

In the response send the top 3 of your work, briefly write down what tasks were on them, what was done, how much it took money and time.
Write a little about yourself, who are you? How long do you spend on sites? What skills? What city do you live in? What time is in touch? What do we do if errors or bugs are found after the work is completed?

If youve read it to the end, start with the phrase "Great Beginnings"

The artist will choose the best offer at the best price