I can't seem to think of any reason why this wouldn't work but thought I'd ask. After searching it seems a few people have this setup. I was going to get either this
brake kit. For now I'd just use my current levers and go front disc, rear V-Brake since my frame doesn't have mounting hardware in the rear for discs without getting the Brake Therapy kit.
But once I motorize I definitely want to put on the dual brake lever and just wanted to see what other people thought of their setup if they had something similar (front cable pull disc, rear V-brake with a dual pull level actuating them both).