Hi,
My team have been developed in Opencart modules, so we know how to do it, also we do often Opencart stores and modify it quite a lot.
Now if I understand well, you have 300-400 articles and you want to store them into a OC database, organized as title or type (searchable) then on each product from database to assign it to the products a few of them, like the actual "Related Products" just to be "Related articles". Is this correct?
If yes, then consider my bid and we can start next week. Theoretically should take 3-5 days with testing.
Please let me know if you are interested to be done by my team.
Regards,
Valics Lehel