Went to a friendlier yard today. There are no yards in the area with 3.42 gears. He found some in the surrounding states, but at a cost of $600 minimum plus shipping he didn't recommend them. There 3 in the area with 3.73 gears, priced $375-400. Definitely time to go scrounging the local ads. I had printed out the chart from https://www.roundforge.com/articles/14-bolt-axles-differences-between-srw-drw-and-cc . It gave him something to look up.
After selling everything that wasn't nailed down to China, they are finally getting some vehicles back in stock. But with the area economy just now starting to grow, demand for used parts is still high. Many yards are still bare, parting out cars as soon as they cross the scale, and selling the parts while they are still warm.