Ordering the Same Configuration Different Ways

Imagine we have a simple BOM of a Chair ATO Model. We have a requirement for this chair to be ordered as a standard configuration, but also the same thing as a replacement part for which we would want the order line to push to a different account for invoicing. Is this possible? Secondly, the business would like to be able to apply a different categorization for reporting as a replacement part. In our legacy system, this was done by creating a copy of the item, changing the item number, and then updating accounts/categories on the copy. We then end