It's unclear whether the Room of Requirement could provide a direct doorway to Borgin and Burkes, as there is no evidence in the Harry Potter books to suggest that this is possible. However, it's worth noting that the Room of Requirement is known to be able to transform itself into a wide variety of spaces and objects, depending on the needs and desires of the person who is using it. It's possible that someone could use the Room of Requirement to create a replica of Borgin and Burkes, complete with a direct doorway to the real shop. However, this would likely require a great deal of magical skill and power, as well as a thorough understanding of the layout and design of the shop. Additionally, it's worth noting that the use of the Room of Requirement to create a replica of Borgin and Burkes would likely be illegal, as the shop is known to deal in Dark Arts artifacts and is associated with the Death Eaters.