If the downtube front derailleur mount would have accommodated, I would have gone with a mountain double crank in the 42/28 range with an 11-28 (SRAM cogs) or 11-32 11 speed in the back. Work out the gear inches, it is a nice set-up.

beign able to fix a broken chain or a broken spoke is an essential skill on the road. Maybe a cable, especially on cantis.