if the pedal didn't go down theirs a reason.
never force anything if it don't move doing that will make a simple repair into a bigger P.I.T.A. than its worth
junk yard would be your best bet for the pedal assembly
its not very difficult
the easy way to do this is first remove the drivers seat so you have room to work .
unbolt steering column from under dash just let it hang it don't need to come all the way out.
before you start pulling out the pedal assembly un hook the brake sending unit and both the clutch and brake shafts from pedal assembly
remove the 2 bolts holding pedal assembly to dash and 4 bolts on fire wall , now it should be free and come out
as for master remove hydrolic line than the bolts holding it to firewall,
if your replacing the clutch master I recommend you also replace the slave cylinder and hydrolic line since they probably will have debree/rust in them from master
Make sure you bench bleed your new master and slave cylinders before you install