Lovely frame! Regarding period vs modern, have you thought about splitting the difference and getting some quality used 90s stuff to put on it? You can get good 90s groupsets relatively cheap on here or well known auction site and it would look a little more at home on that frame than brand new modern stuff. For example - I had 90s 105 (with STI levers) on an 80s frame at one point. It made for a nice classic look, but was very practical, reliable and rideable too.
Lovely frame! Regarding period vs modern, have you thought about splitting the difference and getting some quality used 90s stuff to put on it? You can get good 90s groupsets relatively cheap on here or well known auction site and it would look a little more at home on that frame than brand new modern stuff. For example - I had 90s 105 (with STI levers) on an 80s frame at one point. It made for a nice classic look, but was very practical, reliable and rideable too.