Sync/integr ation of opencart (version 2.3.0.2.3) 1C 8

The challenge to bring to a logical end, begun by another person, synchronization of opencart (version 2.3.0.2.3) 8ka with 1C Trade Management (version 11). The website n.mosarte.ru. The man who undertook the work did not understand (or did not want to understand) how to sync options that we have are just 2 sections – reproductions of paintings and mirror frames (where multiple choice options of baguette), see the screenshot. These options (only 3 blocks) was done separately and all of them can be sent in a separate letter.

Tasks:
1. to finish the synchronization standard data (some data is stored in 1s not there where it should be, as an example of the method of delivery falls to the comment to the order)
2. sync extra option 1C. They were made without any wild breaking kernel opencart, all on standard bones. Contacts with the person, which they did and all the questions you can ask him.

IMPORTANT! Hourly work is not enough. Ask all the questions, see, analyze and put the final price tag for all the work.
50% upfront and the rest upon completion of work.
If after reading you are sure that you will be able to accomplish this task, a more detailed description of these options and the unfinished task will receive a separate letter.