I’ll get it ready for you

Hi

A customer wants a bouquet of a specific type to be made for a specific occasion. When she asks the store-keeper if she can come and pick it up in the evening, he says -

If you place an order, I’ll get it ready for you.

Or If you place an order, I’ll make it for you.

Or something else??

(By "placing an order", he means "paying an advance for it")

What would be the best phrase to use, in place of the blue lettered ones, keeping in mind that this is for making a bouquet!

Please help.

Thank you