Been playing a 1750 start, and noticed a couple of oddities.
1) The iron ore mine seems to have a much higher OutputCapacity (1000) than anything else in that era (usually around 50-70). Might be worth changing that to the same values used for the coal mine , or thereabouts.
2) I see some odd effects in the yard of the hardware shop itself (especially when scrolling in & out or after hovering the cursor over it). Should HardwareShop1750 & HardwareShop1790 in hardware-shop.dat have needs_ground=1 set?