Wanted to test out @Tom_Oyvind_Hogstad suggestion of replacing lines of Gcode based on Z values. I skimmed this model, which included some interior overhangs that’d make a hollow print impossible without issues. So, I compiled a 30% fill version and only replaced the gcode for the layers featuring the issue.
Although I was a little generous with the amount of layers, it came out pretty well outside of my flowrates not calibrated very well to my old makerbot filament. Due to this, too much plastic gradually raised the model to almost snapping half-way through. Oh well!