Actually DH suggested the Swimsafe and I think I will get it.

Thank you all for your opinions and these are things, of course, I need to hear.

I'm going to swim tomorrow and I'll do some open water swimming on sunday. DH can go with me in the kayak. Depending on how these go, I will reevaluate.

Now here's an idea...what if I change to the "supersprint"? This would lower my swim from .46 miles to .23. The bike would be 8 miles and the run 2.3. The sprint would challenge me, granted, but maybe the shorter version would be better?

I've known people who have done this tri and say it's no big deal. I'll see how it goes and if I can comfortably do 15-20 laps in the pool.