The problem is less of a New Mexico issue, then a national issue. When a 3.5 blows, the vehicle is junked. Therefore NO ONE knows how to build these rare engines. Like anything if you don't do it every day....I paid for the most expensive, highest reputation rebuild with extended warranty for my old 3.0 and was left with an under powered, over heating mess that the builder washed there hands of because I brought in the clear water heads. It may be that rebuilds in general are just not reliable at a high percentage. And that makes me very reluctant to spend such large sums of money yet again and drop it down a rabbit hole.