bitrix24 export for ERM

We are a national contracting company that is switching to Bitrix24 as our ERP. We are seeking a freelancer who has experience with Bitrix24 and can provide approx. 20 hours per week for the next 4 to 8 weeks. There is a possibility of ongoing work after that. We are planning to take advantage of most of Bitrix's functions and features (task/project management, CRM, file management, etc.) and customizing it to the greatest extent possible with the cloud version. We prefer to pay on a project/milestone basis, but we are willing to consider hourly payment as well. In your response, please indicate your experience with Bitrix24 and your hourly rate. Thank you!