The cost of a point of shield on the base stat line is probably more like 2-3 points worst case.
If you assume they cost the same as upgrades, then 45 points of the base cost of the E-Wing would be attributed to hull and shield alone, leaving only 16 points to account for initiative level, red/green dice, ship ability, dial manoeuvres, upgrade slots and actions on the Knave... which would make no sense at all.