Radio repair/upgrade

Would like to get recommendations on where to send the AM radio from my 68 Dart for repair/upgrade to AM/FM. Hoping for a good job at a reasonable price. Thanks!!!
I've sent two radios to Tayman Electrical stereo solutions for collector cars for conversion and I'm very happy with the results. I've also recommended him to others and they all are happy with the results. Not cheap, but worth it.

I use mine with my satellite radios and a thumb drive with some music I like on it.