David,
As far as I know Mr. Kalka's PBY is still in his posession, still at Skagit and should be pretty close to completion.
I was in contact a year or two ago with the project webmaster, David Hodgkins.
david@projectpby.com. As you have noted they had some problems with email server and the first webmaster mismanaged it into getting the whole file deleted by the server.
David Legg, a newcomer to WIX is ed. of the Catalina News and pretty knowledgeable about current PBY's.
A good place to find PBY news is also PBY@yahoo. David L. and I are both regulars.
BTW, my dad is a PBY veteran and I am plane captain of Lone Star Flight Museum's static 5A, N68740, ex RCAF9742, hence my user name "Canso42"
Floats up!
Doug Ratchford "Canso42"