Rent a stick shift?

I'm looking for someone willing to rent their stick shift car to me to help my girlfriend practice on. She learned the basics and got some practice in this past month while in Europe and has the basics down pat, but we'd both feel more comfortable if she could get a bit more practice in before she gets a go at my newly acquired Porsche!

If you're planning to replace your clutch or sell your stick shift car anyways, this is free money. I'm willing to pay fairly for the help and could even swap my SUV for the day if needed so that you're not stranded without a car.

Me:

• Stanford alum/mechanical engineer
• 6 years daily driving manual, taught 3 other people on my old car (and my clutch lived to tell the tale!)
• Not willing to let her learn on my new baby!

Her

• Dentist <--hand eye coordination!
• Already flogged a rental car and thoroughly comfortable with starts/stops/reverse
• Just needs practice

Let me know if you'd be willing to help and what you think a fair arrangement would be.