1.What does 'that ought to commend itself' mean?
I had a scheme for collecting that ransom without danger of being caught by counterplots that ought to commend itself to professional kidnappers.
2. "What suits me," Keogh used to say, "in the way of a business proposition is something diversified that looks like a longer shot than it is--something in the way of a genteel graft that isn't worked enough for the correspondence schools to be teaching it by mail.
In Arthur's time Sir William Keogh would have been a Knight of the Round Table. In these modern days he rides abroad, seeking the Graft instead of the Grail.
What does 'graft' mean? Business, business chance, bribe, corruption, monkey business- -
1- should appeal to
2- sounds like mokey business to me