Well, here is what I came up with. Found this beauty on EBAY (of course), and got it for a good price. It is a gas, radiant insert in good condition - just need to get radiants for it. I may restore it to operating condition, but most likely will just get a cosmetic job.
And here it is with the salvaged mantel stripped and installed. Brick veneer will cover the old brick until someday - maybe - I can find some matching salvaged tile.