Seriously, elham: customers spend several thousand dollars, quite often >10k on such a blueprint.
Consultancies, who have templates, also invested a good deal of money to build them.
Do you really think that, if you get one from somebody here, it will be any good?
Also: if you get one, it's likely what a mediocre consultant at best has done for a customer. The blueprint is therefore likely to be property of the customer and giving it away is therefore not even legal.
And finally:
If you can't build a blueprint with a customer, then you'll also not be able to amend an existing one to meet your customer's requrement