For a convenience fee, your modules would be fit to your ship as you buy the modules as long as you are in a ship.
For Frigs to Dessies - 500k isk
Cruisers - 1.5 mil isk
BC - 2.5 mil isk
BS - 2.75 mil isk
Dreds - 5.0 mil isk
Carriers (sub) - 7.5 mil isk
Faux - 8.0 mil isk
Carriers (supers) - 8.5 mil isk
Titan - 10 mil isk.
The Auto-Fit would allow for faster fit up times for emergency situations such as a Cruiser Defense Fleet.