I'd go for it. $450 ain't nothing. And that's not a speculative investment - if you couldn't double your money easily, parting it out, I'd be real surprised - if the electrical issues are insurmountable.
If it's an electrical issue preventing it running, it's more likely an issue with the engine wiring harness and those are easy to replace.
But you need to do diagnosis first.
Clark's troubleshooting guide is great:
Troubleshooting - Engine
Go right down the line - check if there's spark, gas and so on. If it is spark, it could be the sensors, the coil, the distributor, the plug wires, the plugs and so on - the harness would be way down my list of things to check.
If it was a harness problem, the most likely is that the wire going into the speed and reference sensor plugs (DME harness side) they become brittle and crack, creating intermittant no-start problems. That's a common problem - and if you have a new engine harness, easy to fix.
You just gotta be methodical and isolate the cause.
Yeah, I would absolutely buy the car - it really is a great price. Think of it as the same as buying a year's supply of video games... ($65 X7 = $450). No real money at all!