Finished!! All was fine, but the internal cabling thru the stem-handlebar is not easy…at the end looks great. I’ll ride tomorrow to test it, will see how it works.
Info: this bike shares geometry with SL7, but the seatpost has little seatback.. have in mind to fit.

You can try open three browsers side by side with the geometry chart of both bike frames and your current bike geometry chart to compare all three. Also put into consideration any setbacks of the seat post when calculating the reach / top tube length.