I got both of my dresses from Monica Bridal as well. The ceremony gown was made well with a few errors that got fixed with my alterations, the reception dress is pretty well made too.
Most of the vendors are closed for Chinese New Year, but should return mid Feb. So it would be close. You can ask them to rush the shipping, I know my second dress arrived in less than 5 days after shipping and that's because the courier screwed up and had to put it in the mail.