Don't let your current range turn you off of electronic controlled ovens. That Maytag slide in design which I'm assuming you have is notorious for keypads failing.

If you must avoid electronics your best option is a pro-style all gas range. There aren't really any knob only electric ranges out there except the cheapest apartment grade stuff. Most dual fuel ranges that are knobs only have electronic control boards behind the knobs.

Otherwise, if I were in your position I would consider shutting off that gas line and looking at an induction range. I think the best and most reliable choice would be GE.