I would wait.... for my own sake as much as the rose. Summer in Florida is too hot and humid for me.
My roses sulk in the PA summer heat and humidity. I have killed roses moving them in the summer ... a combination of inexperience and bad timing. I plant and move roses in the spring in PA. IMO plants don't have time to get established before winter if I plant in fall in this climate.
I am not sure if roses go dormant during FLA summers. I would wait until fall .... At least until after the rainy season. This isn't like California rain ... thus is rain so hard you can't see ten feet away, every afternoon, all season. The twin lasts about an hour, but the humidity never ends. You don't have to worry about the plants getting established before the brutal winter like I do, but you may have other worries.
Many southern rose gardeners buy roses on Fortunata root stock .... hope I spelled it right, pecking away on the phone.
You may want to ask on the Southern gardening forum if a southern gardener doesn't pop in with advice.
