Pelican had a sale on this:
Black Label European Power Bleeder Kit - PelicanParts.com
Make sure you get the kit with the correct cap for your Boxster. Works well on other vehicles.In theory you can make your own from a garden sprayer.I did but this is so much better.
BUT - do not put the brake fluid int he container. It wastes too much and is messy to clean up. The reservoir for the clutch+brakes on the Boxster is huge anyway. Just use the Motive to pressurize ,not to pump in fluid. DO not over pressurize. It has a handy pressure gauge on it.
One reason to use this is that the brake/clutch combo and the power spring on the clutch pedal is a bit weird. In the 'wrong' circumstances the clutch pedal will slam down against the firewall ! You have to pull it back up with your hand or get your toe under it. Intersting if it happens while driving.
Buy a Motive bleeder.Enjoy.