To trade, I have bougainvilla, peach dwarf canna, purple datura, and confederate jasmine.

How about the miniature climber Jean LaJoie. http://www.helpmefind.com/gardening/l.php?l=2.3488 It's hardy to zone 4b. Although it can get quite large, in your growing zone, winter will keep it smaller.

Yes, you can plant your roses now. However, if you are planting in full sun, you may want to rig something to give them some shade from the worst of the afternoon sun so they aren't fending off the heat at the same time they are getting established. As roseman says, you may not have as many blooms in the heat, but the roses will get established. You should get a fall flush and the more established the rose, the better flush you will have next spring.

Jerads3D--were you successful in locating a Climbing Dainty Bess? I'm still looking! Thanks. Sallie