Ex850R
It should be the 6 speed box.
It would be good if the transmission fluid has been flushed and replaced before but not a deal breaker.
We have s80d5 07 and v60t6 2011 with 6 spd. Low kilometres on the S80, 170K on the T6. The S80 got better with Penrite synthetic as did the T6.
I'll use Nulon next time as others are getting good results.
The only way to know is to get it hot and work it to see if it acts up.
Solenoids can be changed, it's not a big issue, certainly not as bad as the T5 8spd auto tragics to be avoided like plague.