Yup, that is certainly do-able for a lot of deciduous and for Larch too.
Taking is more successful , this time of the year, if fewer roots have to be chopped and the rootball is large.
But the thing will still need settling and at least a year of full growth, before styling can begin.
And it won't really be Bonsai, as to get it to that stage will need a lot of commitment, especially of time.
Taking wildings is not without all the same perils as keeping a potted tree, it's a matter of knowledge and that that's gained in the hands-on.
Better approached down the seedling route if at all possible. And you don't get the physical exertion involved with digging up.
For sure, one cannot know what difficulties will be encountered in the Yamadori route and it is sadly true, that a lot of potential material is lost to hacking about with sharpened spades.
Without wishing to be negative, if your friend is attracted by the beauty of the visual impact of trained trees, then a fair bit of that criteria can be provided by any of the large amount of artificial, ceramic creations that are available cheaply...no digging involved, no training, or care regime needed, no pest problems or issues with growing medium and root rot.
On the other hand, as a conscience easer, consider the fact that, just say you still want live stuff as a present, then you are consigning your friend to the inevitable expense of suitable tools, pots, books and sundries that are essential to the hobby...would you be thanked for that?
Ceeg