Which Amira do you have?
I test rode the Amira Apex and loved the fit. I would probably buy the Amira Elite or Comp compact for the components. They did not have those bikes in my size. One bike shop put me in a 48 and another said I could use the next size up. sigh. They both felt ok.
I tried the Madone 3.2 for size, they did not have the 5.2. It felt very much like the Ruby and they put me on a 50cm which felt fine. I guess a 48 in Specialize translates to a 50 in Trek.
The last two bikes that I am going to try is a Giant and Felt. I asked around and no one around here knows much about Felt bikes. I cannot find many reviews on line. There is a store nearby that sells only Felt bikes and they appear a little less expensive that the other models. They are also very light.

I guess 18-19 lbs is not that bad for a entry level carbon. I just thought carbon bikes would be much lighter. I am not spending $5000 for a bike since I am a weekend biker although I do at least 30-40 miles on a ride. I want nimble, light and stable....did I mention comfort....and yes those hills...
Mahalo! Thank you for your comments, really appreciate the help!!!!
Terry