To answer OP question -

First pair of custom road shoes were from Rocket7 years ago. Last two custom pairs from Bont. Would do them again but it all depends on the guy casting/molding your feet. He has to know what he is doing, done a few before, and meets your specific requests or requirements. I would also consider Riivo or D2 as possible choices.

As to leg length discrepancies, contact Tom at High Sierra Cycle Center. He may be able to help you out.