Peter R. wrote:
Dave Butler wrote:

wrote:

I have the ear of some local government development people, who are
contemplating upgrading some airports. Money is tight, so an ILS is
probably not under consideration. So, I want to recommend to them
checking into a WAAS installation. Does anyone know what the prices of
such equipment for an airport are, which companies are selling them,
and how much it costs to get the FAA to then create a WAAS IFR
approach?

There's no ground equipment requirement, all the equipment is airborne.

If the airport is not currently equipped for instrument landings, wouldn't
it require approach lighting and proper runway markings?

Quite right, there may be some such requirements. I thought I had written
something like that, but looking back, I see I only mentioned possible obstacle
removal requirements (which you snipped). Can't you read my mind?