This was the most emotional decision I had to make during the Big Gonzo build. It was, and always will be known as the Great Gonzo Crisis.
In the end I chose an ETA 2846 for several reasons. 1030s are getting more scarce by the day, and autowind reversing wheels will only last so long. I intend to use mine in the ocean - a lot - and I cannot justify trashing a 1030 if it leaks. An ETA is durable and easy to replace.
So my path chosen, how to make it work? My dial is made on a gen 6538 plate so the feet were wrong. Drilling the ETA base plate is the most elegant solution. The stem height for 2846 vs. 1030 was wrong anyway (too tall) so did I want a spacer?
In the end I had Ziggy cut the feet off the dial (please remain calm) and he built a custom movement ring. Then he machined the MQ case to fix the stem height. That's called 100% commitment.
A problem arose when I used 1030 spec hands on the ETA. He Who Must Not Be Named had lumed them to exactly match the dial so I needed them. I had one watchmaker attempt to broach them to fit, and he was marginally successful. I wound up sending it to MyManMatt and he did it right. Using gen Tudor gold hands would have been easier if I could have them tinted to match.
You'll need a stem adapter to mate a gen 8mm crown to the ETA movement.
Now it's together, the movement doesn't move AT ALL in the case, it looks fantastic, keeps perfect time, and it's bulletproof. That's exactly what I wanted.
PS: an additional something to consider: http://www.yukiwatch.com/articles/article/7390084/160035.htm