Bespoke slicer - last step

I am near completion of my project to build a bespoke slicer in grasshopper, but time is running short and I could use some pointers for the last step. I have all the data I need (coordinates, lengths of lines, etc) but I can't see a way to add the text I need where I need it. If I could get each line for the print run to generate automatically, I can put the rest in manually, so just need something like:

... ; I would do the previous to this manually
G1 X10 Y5 Z3

G1 X5 Y5 E5

G1 X5 Y15 E10

... ; I would do the rest manually

for a 5 mm line from [10, 5, 3] to [5, 5, 3], followed by a 10mm line from there to [5, 15, 3]. Any pointers greatly appreciated.

Ewan