It sounds like you are talking about the wider ribbon cable for the lower LCD. I don't know of anywhere you can buy these pieces. It's just called the lower lcd connector or socket. Your best bet is going to be finding a junk motherboard on Ebay and taking the part off of that.
This repair can be done. I get these periodically. It is an extremely difficult repair and I always use a jewelers luope to do it, but a microscope would be better. the trick is to get the new one under the pins and into the grooves on the sides of the socket before you fold it back. It can be done, but it's hard.
I hope this helps.