An ERA is 70 inches wide at the rear so the width is not far off. With that and the wheelbase it doesn't appear to be a Kellison, West Coast, or a Stallion. No hood or doors huh - that will be a problem unless you can get an identity on it. If all else fails you may need to post the out to out dimensions of the door and hood openings and maybe some various model owners can match something up. A little fiberglass and filler work and anything can be made to fit.
