I would use both floor wand and hand tool. I find that the floor wand is too big for a good clean but speeds up the cleaning, the hand tool does a better clean but leaves loads of tram lines, easier to remove tram lines with a dry vac with your floor wand and then groom.
Pricing is difficult. Depends on state of rug and how much you think she will pay. on top of this what would you consider for doing the job. Most price by square foot, but that means not much money for a 4x6, but lots for a 12x9, espically if you have two on the small job. I would consider £120 a rug, but possible cheaper if I am doing two at a time.
I see no one else is mention prices, so maybe if I get the ball rolling some of you guys can put your input in. Is this cheap, expensive or a fair deal?