As far as your desire to have Sita Rama Deities, it is a good idea, but you should wait for some time. First see that you have sufficient brahmanas who are very well trained and qualified, then you can consider to install Sita, Rama, Laksmana, and Hanuman. They are the ideal King and it will be very suitable that They reign over the capitol of America.
Letter to Brisakapi, 7 January, 1976