Have a look at post #4 on this thread and you will see my minimalist titanium, 2-speed S-type
http://www.bikeforums.net/showthread...ton-S3L-Review
It now sports a titanium railed Brooks Swift saddle.

I would keep the front luggage block as it weighs next to nothing.
S-Type bars are my favourite and give a much more sporty ride than the sit up and beg M-bars.
I'm really fond of the Schwalbe Kojak, light, fast and very puncture resistant (2 punctures in 2 years of daily use).
Rather than carry a pump, I have a co2 air chuck with me http://www.bicycleeverything.com/pro...-Chuck-SL.html