Vietnam in January 2019 - get in!

I've just managed to secure myself a place on a non-business birding tour of south and central Vietnam in January 2019. Run on a non-profit basis by Boletas Birdwatching Centre for existing customers it will be an ideal opportunity to enjoy a cut price tour of this mega destination full of indo-chinese goodies and endemics!
Just a quick look at all the possible Laughingthrushes has got me drooling!
The tour visits Cat Tien NP, Deo Suoi Lanh Pass, Di Linh, Dalat, Yok Don NP, Mang Den, Dak To and Bach Ma before returning to Ho Chi Minh City. I'm considering my own little extension for some wader action at Tan Thanh on the Mekong Delta before I fly home.