"Don't run the positive cable directly to the starter solenoid. Run it to a Ford type remote solenoid first, then run the starter wire from there to the starter solenoid."
The way it's worded it leads me to believe he has 2 solenoids. Perhaps he meant your configuration?
Even if you use a remote Ford type solenoid, you will still have the solenoid that is attached to the starter. The big wire from the Ford solenoid will go down to the big post on the solenoid which is on the starter. You will rig up a short, permanent jumper wire, from the big post to the smaller start post, on the solenoid. This will cause the starter to engage, as soon as power comes from the Ford solenoid.
In the pic I posted, the starter wire goes down from the remote solenoid to the big post on a Summit mini starter. There is a jumper wire connecting the big post & the small start post.