I'm not going to do a C3PO right now, but thought we should archive this info in case someone else wants to tackle it.

First, from TK409:
I'll gently warn you, like I do to everyone, the protocol droid is a very difficult costume to handle. It's expensive. And then there's the $1500 chroming. It's a long wait for parts (about 10 months due to demand), it takes a long time to put on, and once you do, you need to have a strong physical constitution to wear it. However, the parts are movie-production quality and it makes a perfect, poseable counterpart when you tire of wearing it. If you're still interested, here you go.
www.TK409.com/c3poparts

help here:
www.TK409.com/c3po.html

and here.
www.C3POBuilders.com

You can monitor your order on the list at
www.TK409.com/protocolproject

Thanks again for writing.

- Chris Bartlett
http://www.TK409.com

Then, from Moncal:
Unfortunately we don't offer the machine head parts at this time. Our last run took a year to have made Not a good turn around time.

We do offer the following for C3PO;

Vacuum formed shorts ............. $100.00 plus shipping
Rubber Hands ........................... $134.00 plus shipping
Rubber Feet .............................. $134.00 plus shipping

Here's some pictures of the above items;

Shorts:

http://www.mg501.com/gallery/albums/use ... 01sm~0.jpg

http://www.mg501.com/gallery/albums/use ... 02sm~1.jpg

Rubber hands and fee:

http://www.mg501.com/gallery/albums/use ... 0571sm.jpg

http://www.mg501.com/gallery/albums/use ... 0573sm.jpg

http://www.mg501.com/gallery/albums/use ... 0574sm.jpg

http://www.mg501.com/gallery/albums/use ... 0575sm.jpg

http://www.mg501.com/gallery/albums/use ... 0576sm.jpg

http://www.mg501.com/gallery/albums/use ... 0577sm.jpg

Please let us know what you would like along with your shipping address. This way we can get you a more accurate price quote.

We are currently working on a full C3P0 kit. But it will be in the works for a long time.

Awesome