I can't say much for the rest of your list, but I've seen Lavaglut look fantastic here in Louisiana. The best rootstock for our area is Fortuniana, but many own-rooted roses do well too.

You might order off Chamblee's, Antique Rose Emporium or Roses Unlimited lists. They are all southern dealers. Also, the American Rose Society's garden is in Shreveport, LA and you could call them and ask.

I second the idea of calling the ARS or checking out a Southern Rose Grower's catalog.

I have Sexy Rexy in my Florida garden. It is a nice rose, but humid conditions make it very blackspot susceptible. As long as she sprays, she can keep it under control.
If you are open to suggestions, Duchesse du Brabant, Souvenir de Malmaison, Mutabilis, Belinda's Dream, Louis Phillipe, Cramiosi, and White Pearl in Red Dragon's mouth are some that come to mind as doing well in the South. Pink Pet is another.

The last I heard, ARS sprayed their rose garden.
Maybe that's changed, but if they "Spray and spray and spray ..." as they told me when I was there a few years back, they may not have a good reading on what roses would be disease-free.
But Lindawisconsin has made some terrific suggestions. For others, talk to the Antique Rose Emporium, and look up the Earthkind Roses lists on the Web.
At one point, Antique Rose Emporium donated roses to Beauvoir, for a rose garden there. (You know Varena Davis was a rose-lover.) Those roses must surely have been lost in Hurricane Katrina (when Beauvoir was so badly damaged) and I wish I could recall what they had. But I'm sure they had 'Old Blush,' and I think they probably had 'Perle d'Or.' (I sure would!)

Jeri

Give Jim Mills of K&M Nursery a call. He should be able to help a lot. Ask him about Belinda's Dream.

Lisa at Countryside Roses is less than an hour from Biloxi, and right on the gulf in Pass Christian.