1981 xj750 seca No start!!!

I have a 1981 xj750 seca, got it for free owner said it ran when he parked it. I have cleaned the carburetor, spotless and correctly. The wiring though is a mess.... I removed the headlight and as much stuff as possible as I would like to make a cafe racer, I removed the Atari Speedo and headlight, I don't believe that big connector I unplugged. Between the harness and the speedoshould prevent it from starting if I read the wiring diagram correcr. There's are multiple wires snipped, missing, and simply unplugged. The start button will not crank it over as do I not hear a click either from the starter solenoid, but I CAN get it to crank over if I bypass by applying power to the starter solenoid, I am getting no spark either. It has been sitting a very very long time, alot of wires have been cut or 3 way soldered together (whhhyyyyyy!?!?!? Lol) anyhow, kind of at a stand still, doesnt even sound like it wants too

 

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http://www.xjbikes.com/forums/threads/1981-xj750-seca-no-start-no-spark.116712/#post-583759