Seeking anyone?s help in my dilemma.

A few months ago my 87 vettte would not start. I was able to jump start it and take it to Sears to have the battery replaced. I was able to start it and drive it back to work. When I went to start it again it was dead. I had it towed home, when the flat bed set it on the driveway it started again. Assuming it was the remote starter I removed the remote starter and replaced the starter motor since it wasn?t immediately disengaging after starting.

While driving on the highway it began loosing power, smoking and it stalled. Again it was towed home, and started again after it was released from the flat bed. The following day it started by stalled while idling. I replaced the ignition pick up coil and module, and fully charged the batter overnight. The next morning it did start but after idling for approx 8-10 mins it stalled again and to this day it has not started again.

I had the batter replaced but it will not start, the interior lights do not illuminate, the horn doesn?t sound, it has no signs of acknowledging electricity from the battery.

Can anyone PLEASE offer some suggestions to repair my major DILEMA?

Thanks in advance.