Thank you all for your replies!
I actually heard about the Aegis Swift and I checked it out, but the standover on the smallest frame (44) is 70.3cm (sight). Also, the guy at the bike store, where I went to check it out, told me that since I do long distance riding, the triathlon frame will be uncomfortable.

I also heard back from Treck, no plans for a 43 frame in the 5200 WSD in the near future.

I will to take a trip to the Robinsons Wheel Works to see what they have.

Letty