This cite gives day labourer rates for around the 1750s in Mexico City as pegged at 3 reales/ day. So just under three day’s wages for the meanest kind of paid labour.
From 1750 to 1812 laborer nominal wages were pegged at three reales per day …
It was only in 1813 when nominal wages began to increase reaching four reales by
1817
Probably more like a peso a day for anyone skilled.
Note that despite what some may be thinking, Mexico City wasn’t some backwater during this period, at least at the start (1750) so using its wages isn’t far off the mark.:
Mexico City started out with high real wages, almost at par with Amsterdam and London*
The article also gives another way of looking at value: contruction workers who were fed on-site during the workweek had 1 real/week deducted from their wage:
One real (one eighth of a peso) roughly represented the weekly costs of food for one person in the colonial period