whe tebsite is just one page and do just one thing:
u put the post of facebook you have - picture post \ video post \ status post
and is show u at list u all the names of the commetns. also u can save that in csv or txt file.
simple and easy.
i can give u templet for the website or u want design at all is ok from my side.
u need install at in the swrver and buid small admin panel to show all the lists too and requst.