Re-enabling old Cainhurst
Rename the new expsp_cainhurst.png file in graphics/ships to something else, drag the PNG file from here into there without renaming.
Rename the expsp_cainhurst.ship file in data/hulls to something else, 
rename the expsp_cainhurstold.ship in this folder into expsp_cainhurst.ship, drag that file into data/hulls.
Rename the expsp_cainhurst_Lancer.variant and expsp_cainhurst_Standard.variant files in data/variants, drag the variant files from here to 
data/variants.