It seems that my post took a while to moderate so its a bit out of place now…
If you want to spend 18 hours re-capturing your footage to avoid Long-GOP and work in 422 for better comping and VFX capabilities then go for it – if you don’t need to, then save yourself 18 hours!
To transcode and import that much EX footage you’re looking at around 3.5 – 4 hours and roughly 270 – 290GB
There’s a number of ways to pass data between your two sites, maybe look at final cut server or simply swapping XMLs
Jigsaw Systems Ltd. – IT & Broadcast specialists for the UK
https://www.jigsaw24.com
https://wwww.jigsawbroadcast.com