How to make integration 1C 7.7 and ocstore 2.3?

Question

opencart

Hello. Tell me a working solution for integrating 1C 7.7 and ocstore 2.3. I shoveled a bunch of information on the Internet, made for myself a list of companies that provide this service, and it's still somehow incomprehensible. I read about some companies and found negative reviews.
www.opencart1c.ru
https://www.opencart.ru/1c
1c-opencart.ru
oc1c.ru
from64.ru
1copencart.ru
site-with-1c.ru

Answer 1

Extremum , they offer a module for about 2k, and if you order from them on a turnkey basis, then they named the price 20k rubles. is this normal at all?