I need a little help tracking down some parts. Re-doing two bathrooms in my condo. I have JPI bath/shower controls and I'm having trouble locating a suitable replacement that looks halfway decent. It's a molded shower stall and I have no back panel access. Just looking to replace the knob, but non of the popular name brands will fit without some very clever custom work. Are there any plumbers on the board with ideas. I can barely locate anything on the web for JPI stuff, probably out of business or something. These things look like garbage. Please help!!