Want to divide a heightmap into sections

This is the direction my mind went, and I used this process for the finishing pass on this map. Not because of tiling, but more for scheduling time.

The complication I see when making different tiles/sections is that each section (of the topographic map) would need a different zero point if they were being cut on different stock, or do as you suggested and move the map (in carbide create) for each section.