Yeh, you can go the Vietnam route if money is burning a hole in your pocket. But be ready to spend $5K usd! I think the 6238/4 from Trusty is a good place to start, if it's available. Problem with Trusty is he never edits his selections and these watches do go out of production. But I've done well with Marvellous, he's found a few off beat reps for me lately. But the 6234 is a vintage model- the rep factories may have moved on.
BTW, Valjoux 72 movts are very pricey these days, I've built a few rep/frankens with them but I'm done. The Venus 75/ST1903 is a good substitute for me.