Hi there,
I have a modified throttle body removed from my 2.5V6 that recently caught fire.
The shafts have been filed down to about half standard thickness, the standard butterfly retaining screws with their large square heads removed and replace with high carbon steel grub screws that fit flush with the shafts, and the leading edge of the butterflies smoothed off. Working TPS sensor is included.
for pictures see here:

http://i740.photobucket.com/albums/xx50/NiallyV6super/Stuff/DSCF0539.jpg

http://i740.photobucket.com/albums/xx50/NiallyV6super/Stuff/DSCF0540.jpg


These would be perfect for anyone looking to enhance their top end power a bit, or could be used in conjunction with 3.0 cams + remap etc.....
I had it on my car for over 4000 miles and it was trouble free. I am told that to send a throttle body to a tuning firm to perform similar modifications would cost well over £100! 
Looking of offers around the £40 region.
Pm me if interested. Regards, Niall