Thank you for such a prompt response. This is the information in the I-864 instructions about exceptions to completing the I-864 that made me think that I might be able to complete the I-864E instead. Our combined SSA income exceeds 125% poverty level requirement.
1. Any intending immigrant who has earned or can receive credit for 40 qualifying quarters (credits) of work in the
United States. In addition to their own work, intending immigrants may be able to secure credit for work performed
by a spouse during marriage and by their parents while the immigrants were under 18 years of age. The Social
Security Administration (SSA) can provide information on how to count quarters of work earned or credited and how
to provide evidence of such. See the SSA website at https://www.ssa.gov/myaccount/ for more information;
Thank you, as well, for stressing the importance of being able to re-establish US domicile.