In the event any candidate is unable to pay the filing fee prescribed by the Primary Election Law N.M. Stat. Ann. § 1-8-10 to 1-8-52 he may file a statement with the proper filing officer at the time he files his declaration of candidacy to the effect that he is without financial means to pay such filing fee. The statement shall be sworn and subscribed to on the form prescribed by the secretary of state and furnished to each county clerk and shall be attached by the proper filing officer to the declaration of candidacy.