XF 2 Need: Payssion Payment Gateway addon

[USY]

Hi i need a developer which can make a Payssion Payment Gateway Addon (as global XenForo Payment profiles)

Here is their API Library: https://payssion.com/en/docs/#integration-api-libraries
They got already for lot CMS payment plugins, but unfortunately for XenForo still not.

Please sent me your offer with the estimated development time and development costs.

Thanks and regrads