Wally,
If you were flying an aircraft equipped with a HUD, why the hell would you be doing a VOR approach?
As Green Goblin says, RNP-AR is the way forward. It's not perfect, but it's probably the most sensible option for somewhere like Cooly. Why go to the lengths of installing and maintaining an ILS for a minima around 220' AGL, when you can get to 250' AGL off an RNP? Similar vis requirements for both approaches, assuming no HIALS.
Seems a no-brainer to me!
Last edited by Transition Layer; 4th Feb 2013 at 01:40.