Can you replace Iron with something, so you can build Aquafarm from day 1?

Also wood with processed wood and throw some nails there :]

Uh, idk what materials IR2 has. Processed wood and nails sure, but is there a sort of iron plate?

yeah, Copper and Tin before Iron.

You can copy-paste copper burner drill and remove pistons from recipes because there is nowhere to put pistons in the fish house I suppose :]

Updated. If there's any problem with the recipe, let me know.

All works like a charm!
Suggestion: remove base wood requirements. You already using wood in form of copper beam