I would change the rear shocks first which should give the biggest improvement in handling. A stainless hose and handlebar mounted MC will make some difference but there will be no subsitute for double discs, preferably a Brembo set up but that will require a whole new front end.
If it's in the Touratech catalogue then you don't need it
"You've got to think for yourselves! You're all individuals!"-Brian of Nazareth