The floor plan for the 2014 19' standard on the Scamp
website should be the same as your 1994:
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As far as I know, other than the deluxe models, it's the only floor plan Scamp has ever offered. I was a bit surprised that you said your stove was on the curbside, because I thought they were always street-side, next to the bathroom. I found a photo of a 1985 19'er showing the usual location of the stove, same as on the current 2014 plan:
If yours is somewhere else, it could be a factory or (more likely) a PO modification.
If you are looking for a detailed building plan with exact dimensions, that's harder. I've never seen anything like that for any trailer. You could ask Scamp.