Rennline has a nice setup with a gas pedal riser & heel toe extension. I think the cost approaches UD pulley territory if you get everything, incl dead pedal.
thstone did a nice review on them:
http://986forum.com/forums/general-discussions/28895-rennline-pedal-install-guide.html
Pedals:
Manual-Rennline, Inc.
Lifter & Extension:
Accessories-Rennline, Inc.