A999 in a 70 Duster

Alright my transmission Gurus I have a question. My 70 Duster original 318 num match motor and trans is a mess, broken bolts and such. I have a 90 318 I rebuilt with reground roller cam and the A999 that was attached to it. My question is being a lock up converter, can I just drive it with the Lockup switch disconnected or do I have to add a 12v supply to it to dissengage it. I do eventually want to activate the lock up if possible.(any tips on how to do that with a switch?) It has 3:55 8 1/4 SG and 14x10in Cragar tires. The car will be a daily driver Rat Rod.
Thanks, Kyle