Lightbox with image sets

Permalink
Hello. Well i have been searching like a madman for the past couple of days and i cant seem to find a suitable solution!

I need for my website a lightbox effect inside concrete5.

I need to be able to add thumbnails to a page for image sets So that when i add a block it will i can choose a fileset for that block and it show up as a thumbnail on my page. Lets say i got 10 new pictures for my website but i dont wanna take up the space of 10 pictures so my thumbnail just shows one of the pictures, could be random. But with a click on the thumbnail, lightbox effect or something similiar comes up showing that set of 10 pictures. anyone have something like this or know were to find/downlod/buy? Would love to have a free one, but im willing to spent a couple of dollars on it if nessesary.