I couldn't see you are located in Butler on my phone yesterday. I am not going to say that Elizabeth isn't worth your commute, but as you noted, fishing the northern locks, it is likely 30 minutes for you to fish there. As opposed to 1:30 or more to Elizabeth (much more if not timing traffic correct).
If you head out there, here is the website of the bait shop. He said they have internet deals on bait at times. They had some 8" suckers there, when I was there.
https://mutt-jrs-bait-shops.myshopify.com/ Here is the boat access launch. Elizabeth isn't a major crime area. Old river town that saw its glory when the mills were in their hey day. But by no means a gang ridden dump like some the other mill towns closer to downtown. I'd say similar make up as Butler.
https://www.google.com/ma...!4d-79.8911029!9m1!1b1