Hope the bike works for you.
You may want to look at Xtracycle for touring.
Their longtail adapters work for most frames.
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Worth looking at are the choices in hubgears, up to 14 usable speeds, with a wider range than most derailleurs.
And there is at least one combo hubgear/ derailleur with 27 speeds on the rear alone.
No chain twisting between front and rear.
And boron-aluminum is far superior to titanium.
I think there are boron frames too, only a third lighter than titanium.