The circle keeps coming back to the Suzuki DRZ 400!
Real bikes are red! 
Tyger, go have a look at the Beta 400 - or the 525, 450, 350 or whatever you fancy. The 400 is a notch milder tuned (and has steel valves) hence would fit the dual-sport bill best, but the 525 ridden accordingly could do fine also. Steel frames should be able to carry some luggage too.
ALL of these bikes come with a roadworthy kit which includes a fan even, and on purchase (registration actually) you decide if it's On- or Offroad - for life, cannot change this again, so choose wisely.
And... they come in Red too.
Your 'red is reliablest' will prove a fallacy if you take a motocrosser and hammer it down the tar, know it. Ridden sensibly anything can do this but it won't be fun, certainly not on your technical riding, but it's here where a Beta will shine.