Hi,
As expressed by experts it is not possible to do such kind of Goods receipt.
i am just giving my idea .
do the goods receipt in to a special Storage location ( maintain in work scheduling) . make sure that no sales transaction can access the storage location stock ( check with sales people about Storage location determination in sales).
once you want to make the stock available for sales move the stock to other storage location relevant to sales.
Regards,
Mahesh.