I have compared Luke 2:22-24 with the Hebrew text that prescribes the sacrifice mentioned by Luke in his first-century Gospel--a sacrifice that was to be given by a person of humble means, if he/she could not afford to offer a lamb to Jehovah:
"When the mother has completed her time of cleansing, she must come to the front of the sacred tent and bring to the priest a year-old lamb as a sacrifice to please me and a dove or a pigeon as a sacrifice for sin. After the priest offers the sacrifices to me, the mother will become completely clean from her loss of blood, whether her child is a boy or a girl. If she cannot afford a lamb, she can offer two doves or two pigeons, one as a sacrifice to please me and the other as a sacrifice for sin" (Lev. 12:6-8 CEV).
Furthermore, I still wonder about the Greek TEKTWN and what the "typical" socio-economic status of a carpenter, builder or craftsman was in the first century CE, especially in Palestine. These questions are probably not easy to answer.