JF WS6

Hey guys, well I finally decided to start installing this thing even though I'm missing parts still. I pulled off my old fuel rail and injectors, but I really am having issues getting the injectors installed in the NXL rail - it's very hard to keep from damaging the o-rings with the sharp edge on the rail. I've got them all greased up but man it just doesn't seem like they will fit at all even getting the one side in and trying to work in the other side. I'm running motorsport 30# injectors too - does this make any difference?

Also, it looks like a few of my o-rings are damaged and will need replacing - does anyone know if Autozone or Napa has these? I can't find them and I've been to 2 auto stores already, all I can find is an "assortment pack" that only has 1 of the size I need in it for 4 bucks.

Any help would be greatly appreciated. Thanks!