You are answerable to Allah. Hence marry as Allah has told. Then everything is lawful. May God protect you Sister. An imam is not needed. Any two muslim witness and a Waliy. All praise is for Allaah.

A marriage contract is valid in Islam if the following conditions are met, even if the marriage does not take place in a court, or in the presence of a Judge or the Imaam of the masjid. In addition, it does not need to be written.