Just wanted to update that one month back I bought a used but almost new LiteSpeeed T5 with SRAM Force build. The size is Large with ETT = 57 cm.
I test rode it and liked the feel of the bike and bought it on a whim. After that I took it to my Bike Fitter in San Diego and he told me that the bike fits like a glove to me. I told my need for riding ie comfy ride nothing too racy. He advised to me tweak the stem as I ride more but he finds everything dialed in properly for me. The stem size is 110mm and if needed I can go to 90mm but I don't see the need for it.
I am 5'10.5'' and I was concerned that bike would be tad bit big for me but that does not seem to be the case. Also, in my previous bike Felt z85 with ETT 54.5cm, I used to get neck and lower back pain even after a ride of 10-15 miles. With this bike, I don't get those pains.
The new comfy ride is definitely suiting me more and I like the look and feel of the bike.
Thanks all in this forum to help me out