I thought it may be useful to some contemplating this trip to show my preperations for Germany next month.
To save those reflector benders I fitted a non directional headlamp.

In my spares kit are spare bulbs, fuses, tape, plug cap and I will add a plug or two. All sealed up in an ice cream tub.
I also have inner tubes and levers. The bicycle pump will be hard work but I will add compressed air canisters as well.
The spare clutch cable is on its way from Z Power.

If anyone wishes to add to this then do but only useful comments please.