Thnx for the detailed listing. Could you share your height and maybe inner leg lenght?
I'm 5'-10" to 5'-11", inner leg length i would say is normal. I've always run size 54 bikes (cervelo, giant, scott), so I'm expecting this to fit similarly. You can use BikeInsights.com to compare frame geometry's. I compared my now old Cervelo R3 to the SL8 (TTX68 is exact same geometry), and found 6mm more reach and 11mm lower stack.