Upgrade a module from 1.5.6.4 to 2.3.0.2

Hi everyone,
Not sure to be in the right place to post this.
I have an extension for OC 1.6.5.4 and i upgrade my shop to 2.3.0.2
Unfortunatly the developper of this extension doesn't exist anymore on Marketplace
I would exactly the same for 2.3.0.2 , i can give all files from 1.5.6.4
Someone could be able to do this ?
I can give all details in mp ..
Regards

Better to submit your request in the Commercial Support section of the forum in order to get this task done as a custom job.