culledon,
First and foremost, 'Welcome to THE CLUB'. Second, I'm not sure but I do NOT think SB 100 requires B/U lights, but if they do, may I assume you have a version of the T-5 tranny?
There is a switch on the side of the transmission that has two brass pins sticking straight out. You can use this for your switch. Pick up any small clear bumper lights, or even a license plate type light at your local AutoZone, or even NAPA. You can mount these forward of the rear lip and up underneath to the point where you almost have to bend over to see them. I wouldn't make them to permanent if you know what I mean
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DV...hope this helps....onward!