These parts are all user grade, not for show.
The rear derailleur, $35 to $60 as it is banged up.
Front $25 to $60
Wheels, $100ish they don't show well, well worn brake surfaces, no idea as to trueness or hops, basically sold for hub value, remove the freewheel and cut them out and you might get more, much cheaper to ship.
Bottom bracket, $40 to $100 big spread, bearing race condition is a big deal, the lock ring has wear from a careless mechanic.
Cranks, $60 to $170 Wear kills them, but they are the early ones... an early date code and or good length could help, 165, 175 circle 4 date code pushes to the upper end.
Shifters, $30 to $60 as stated earlier, retrofriction helps.
Brakes, $30 to $45, worn, no colbalto nuts, expensive to find the correct parts.