These are good target weights, even if the stuff I quote is expensive (it will give you an idea):
mat: 450 (Thermarest Neoair for summer)-900 grams (exped down matress for cold weather).
Sleeping bag: PHD Minim some 650 grams for summer, up to about 1 kg for three season
Hilleberg Akto tent 1.5 kg, or Terra Nova Laser (1 kg) if you don't mind a more fragile tent that is not quite up to the worst weather.
Stove and pans: 400 grams for a top of the cannister gas stove and some small pan, up to 700 grams for a Trangia 27 meths stove with pans for reall cooking.
All this lighter stuff is also very compact. Unless you go to the third world or expect very bad weather, two rear panniers should be all you need.
The same applies to all the small stuff like torches etc.
Willem
mat: 450 (Thermarest Neoair for summer)-900 grams (exped down matress for cold weather).
Sleeping bag: PHD Minim some 650 grams for summer, up to about 1 kg for three season
Hilleberg Akto tent 1.5 kg, or Terra Nova Laser (1 kg) if you don't mind a more fragile tent that is not quite up to the worst weather.
Stove and pans: 400 grams for a top of the cannister gas stove and some small pan, up to 700 grams for a Trangia 27 meths stove with pans for reall cooking.
All this lighter stuff is also very compact. Unless you go to the third world or expect very bad weather, two rear panniers should be all you need.
The same applies to all the small stuff like torches etc.
Willem

I agree with everything else but I would take the stove even with the weight penalty. Theres something about 'brewing up' that is at the heart of touring and camping to my mind
I kid you not they were fully loaded and every part of them was below the axle height