Agree with the other posters - the seller is asking a hell of a lot for two cross-bred pigs.
If anyone was considering butchering them, they'd probably be pretty fat by now, at a year old, so there would be a lot to throw away.
And if anyone was thinking of breeding from them a) they should have been in pig by now; b) if they were bought purely to turn over the ground, chances are they might not be up to breeding, as far as underlines, good, straight, sound legs, etc, are concerned.
Best option would be to send them for sausages/bacon. At least that way your friend would recoup some of her outlay.