Multiple Special Purchase Orders for Single Line Items on Sales Orders

We are a computer hardware reseller that largely deals in used equipment. As such, we often have to source the same item from multiple vendors in order to fulfill the order. We understand that we can break apart a line item and create a special order for each line that can go to different vendors, but this not only creates a lot of extra work and added potential for human error, but we also want to keep this process hidden from our customers.

Is there a way, natively or not, to create multiple special orders for single line items on a sales order?