Question about the frame---what size and how much does it weigh?
I have been weighing Workswell or Nashbar, but Nashbar doesn't publish weight figures (unklike WW, whose figures are undeniably ultimately and wholly reliable.

) I have checked that specific frame (Y-seatstay) and am not sure any size really fits me (it goes like 52 cm, to 55 to 57.) About how tall are you? I have not had spine surgery---I use fat in front to keep me from bending down over the bike (so that info about max spacer stack height is Really useful.)
A wholly enviable build. Congrats and thanks for the pics.