The one time that I pepped something I used glue rollers. Itīs like those White-Out rollers that you use for correcting typewriter pages, only with glue. An absolutely fantastic concept, unfortunately really expensive.
They are virtually fumes-free, they come in a permanent and non-permanent version, and in I think two different widths, fitting most of the tabs out there. Itīs really a very clean way to build a pep model.
But, again, quite expensive