One Piece ABS Headliners ??

I have this headliner in hand now it arrived today...im thinking(depending on how hot it is out) of trying to install it this weekend. Any hints or tips I should watch out for(i will have at least 1 helper to help hold stuff in place either my wife/kid or a friend) tools I should have on hand, materials I should have on hand..or it it just really THAT straight forward as to just remove the "brackets" that will hold it in place...put headliner up and put brackets back in place to hold it?? Im just trying to avoid my inevitable..getting 60% of the way into it then finding out I need a tool I dont have to some material I dont have and having to stop to get it...

and as said any tips or hints/techniques you used would be helpful if you will share them.