pjhobs' stable - Who doesn't love a long head tube?!

Hive mind, help required please!

Have been enjoying the Charge, but have come to the conclusion it's too small (no sh*t, look at that seatpost) for long rides. I've also got a new (to me) best bike in the stable which isn't suitable for wet weather therefore I feel another build (or two) coming on.

I'm thinking of splitting this bike's task into two:

1. Winter trainer with ~32mm tyres, guards and optional racks for longer journeys (but would be happy/enjoyable as a commuter
   
2. Fun commuter (details tbc)
   
   

I'll eat my greens and sort out the winter trainer first. I have the Charge up for sale, if it doesn't sell I have plans (think nobblies and ss).

After lots of attempts I've found my magic numbers, ~650mm stack, ~390mm reach and ideally a seat tube over of 610mm.

Few options I've found include:

1. Surly disc trucker - sizing looks good, but worried it'll be too heavy/truck like for the miles I plan to use it for
   
2. Omnium CXC - bit of an unknown, but it it doesn't work out I could convert it into a SS commuter
   
3. Soma, all other Surlys - too long
   
4. All City - £££
   
5. Bowman, Specialized, Secan and many others - too short seat tube
   
   

Any other ideas? Would I be ok on a disc trucker hats other a light(ish) build?