if nothing else, wire it how I had the starter wired when I first got the flood victim dried out, I had power through the main heavy cable to the solenoid (just check it with a test light or voltmeter), so I rant a pushbutton to the starter wire (was interesting though, since I didn't disconnect the original wire either all my gauges worked while cranking but that was it)
and something I can never stress enough to people having no start problems with work trucks, check your battery terminals and cables, 99% of the "Everything works but it won't turn over" jobs I've had was simply a bad cable connection (normally a bad ground cable or loose solenoid nut)
oh, and if it cranks no matter what you do (key off or on) when you hook up the battery cables after you tighten connections, you overtightened the connection on the solenoid and cracked something loose inside (I've done that a few times.....)