Looking for origins of Rafael Duran

Hola parientes, I am currently stuck. I am looking for any baptismal records for Rafael Duran. Rafael is my 4th great-grandfather. I found his matrimonial record of his marriage to Dolores Aguilera on the 23rd of February 1800: https://www.familysearch.org/ark:/61903/3:1:S3HT-DY3Q-FJS?i=264&cc=1502404

I'm stuck because the record states "padres no conocidos" so his parents are not listed. With Dolores he goes on to have many children born in Calvillo, Aguascalientes. Does anyone have any potential leads I can follow? My hunch is he was born some time around 1775-1777. I've search in Zacatecas, Aguascalientes and Jalisco. The closest I've found is Josef Rafael Duran baptized in Teocaltiche, Jalisco in 1777: https://www.familysearch.org/ark:/61903/3:1:9392-GR6G-6?i=368&cc=1874591

Thank you,

Ernesto Duran