The older pessoas (the better quality ones) were made in France but I think the new ones are made in argentina. I'd look into it! Most hunter people ride in either the Gen-X or the A/O. One has a deeper seat then the other. The Blythe Tait is an all purpose eventing saddle though, so I wouldn't recommend that.
I found my Delgrange through ebay. I watched an item that didn't sell, and then emailed them an offer. So I got an almost $4000 saddle for only $1800! Never oiled, barely broken in! (she was in a huge hurry to sell) I think it rides very similarly to a Devoucoux (if not better!) but that's my personal preference. I also got an almost brand new Antares for only $2400. Even the Antares dealer said I got an amazing deal. Good luck!