Ive done this!!! get a haynes manual its cheap and is a good diagram!! I dont see how florida 5.0 can allow the use of the factory senders. I had autometer gauges and had the factory senders hooked up to them for about a week until I installed the oil and water temp senders included with the gauges and the gauges didnt work at all during that time.
I will try to find some pictures of my setup that I have on the net!! BTW I have all of the idiot lights, turn signals, and bright light indicators working!!! ITS ALOT OF WORK took me about 40 combined hours!!!