Reverse lights with 700r4 trans and floor shifter

[dibbleg]

So I've looked around and haven't been able to find an answer to my specific question.. and if there is one, please point me in the right direction..

I have a 67 c10 that had the motor and trans swapped to a 350/700r4. The reverse lights didn't work when i got it. I was originally a column shift but was set up to have it on the floor, which I would like to keep. When I rewired the thing last winter I didn't hook up the neutral safety switch/reverse light switch, because it wasnt there. there's just a jumper in the plug.

So what would my options be in getting these lights to work when I put it in reverse? The only thing I can think of is to get a new shifter with the switch built in and just wire it up to the plug.

Please help! I have to get this thing inspected when I transfer everything over to register it in Maryland.