Welcome Tim.
Bad news. You're chasing the Holy Grail of replicas. It is available with the running seconds at 6:00, but as you now know, the modifications to the basic movement to move the running seconds from 9:00 to 6:00 required the addition of about 12 gears, all unjeweled and mostly unlubed or oiled.
If you really want the watch, get one. Some guys have had theirs for 2+ years without any problems. A lot had it die after 2 months.
Your best bet is to ship it off to a watch guy who works on replicas and have him service the movement. Best to do it right away as most won't work on busted Daytona reps.
The compromise is to get a seconds at nine, based on the pre-2000 Daytona. They're much more reliable but not very accurate.
Lastly, as accuracy is important to you, I hope you realize that a solid gold Daytona would likely cost about $25K. Hopefully your profession would support this kind of acquisition. If not, well, it wouldn't be very accurate for you, IMO.