I'm not real handy but my Dad ran a small construction company when I grew up and his mechanic used scrap tube steel and welded his own off road vehicle. When I think of a dune buggy I picture a body with high fenders and a well where a door would be. A sand rail (for me) is just a tube steel frame with no body parts (maybe a steel plate underneath). My friend in Tucson turned his bug into a Baja Bug by taking off the rear fenders and putting larger rear wheels on that angled in towards the body for traction in the was (dry riverbeds). We thrashed that thing hard and it only cost him a few hundred bucks.

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