I owned one of Phil's lobster hulls in the past and currently run both nitro and FE scales, there is not enough room to cram everything you'll need for FE in there and have the boat work right.
someone did it and showed pics over on ose...he just didn't beleave everyone telling him to seal the hatch so water didn't get to the esc etc.... here is a link...he ran it and never did say how it turned out