I have several Trachycarpus palms that I have grown from seed, they are now
all around 6-10 feet tall. Last year I had to move one because it had out
growm where I had (unwisely) planted it. There was no possibility of not
disturbing the roots, nevertheless, I moved a rootball + plant as large as I
could do do without getting a hernia.

Said plant was liberally watered for a few days to bed it in (this was July
and quite hot weather) and is allive and well and has not suffered any check
in its growth.

T