Want to Buy WTB:K Mount Camera Cap

I have a Cosina K Mount 35mm SLR Camera body and I need in a cap which will be mounted to camera k mount bayonet. I am thinking to retool it and open a big hole to middle of it and mount a 10 libres weight Kodak Fluro Ektar.
US Residents will receive the payment from my sister who is an doctorate student at Harvard University.

Thank you ,

Mustafa Umut Sarac
Istanbul

Or just ask her to purchase one (or more) of these and send it to you.

http://www.bhphotovideo.com/c/product/105588-REG/General_Brand_Body_Cap_for_Pentax_K.html

or

Dead Link Removed

Thank you Ian , I will.

Thank you,
Umut