This article will take you through adding Deal Financing to a Customer Order > Unit Deal 

We would recommend that you setup the Customer Order > Unit Deal and then add the financing 

To add the Deal Financing to the Customer Order > Unit Deal - Click

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Then the user would need to select the relevant Finance Provider and then complete the relevant fields

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If your Finance Provider is not listing for selection, then the user will need to ensure that the relevant Vendor has been setup as a Finance Provider 

This needs to be only done once and then the Finance Provider will be available across all CO at all times

This is the link to the relevant article will show you how to set this up your Financial Providers -