It appears you have missed the meaning of this board...
Replacing all the parts one by one until the problem
disappears is heavy on the budget. Judging by the parts
you have already replaced, you must have spent a small
fortune. Come here first, ask, and you will surely be
able to get your brick running again inexpensively.

Here are few more ideas:

- Did you put in dist. rotor correctly (don't laugh..)
- Pull out and replace with new, all the fuses that
relate to spark and fuel delivery (regardless if they
appear to be O.K.)
- Re-solder fuel pump relay
- Is your distributor / Hall's sensor new, or from a junked car ?
(It could be at fault, although most problems related to it
occurr when the engine is warm)
- Unplug, clean, coat with dyalitic grease, and replug
electrical components
- Check and clean all battery connections
- Did you try starting the car with AMM unplugged ?
- If you suspect ignition switch, bypass it

Good luck !!!