I'm not sure how the IRS automated system will handle a 1099-B with sales price = cost basis. I know they check to see if you have reported the amount shown in 1d, since it is income but they may not looking further than that box (since they only check for income). You can skip it and see if they send you an automated notice later in the year. If so, it is possible you might be able to report the cost basis by letter, rather than having to file an amended return.
