ARB bumper/winch fairlead question

Been working on installing my new ARB bumper with a Warn VR8000 winch today. I got the winch mounted on the bumper, and mounted the fairlead to the front. As per the instructions, I took the vertical rollers off so as to better reach the lower fairlead bolts. Now that the fairlead is bolted in, I can't re-attach the roller retention clips at the top, and there's no room to insert the bolt from the top. Anybody else run into this problem?

 

I should clarify: I used circlip pliers to remove the clip and roller prior to bolting on the fairlead. Now that its bolted on, the pliers wont fit far enough up into the slot above the fairlead to attach the clip. I tried a couple different tips on the pliers too.