Handlebar, Stem, Rear Mech, Pedals, Brake Levers/STI levers

[Sharpy]

Im looking for the following, im on a tight budget so I dont expect the best quality.

25.4mm Handlebar - flat or rise
25.4mm stem for 1.1/8 steerer
7 speed rear mech
Pedals
Cantilever brake levers
rear derailleur shifter for 7 speed, not sure if an STI is possible with cantilever brakes?

Thanks!