@Vanishingpoint: tough question on the weight. You would have to find someone who had a stock Roxor. Winch / no winch, stock bumpers / OTR steel bumpers, windshield with glass / polycarbonate / no windshield, steel / alloy rims, tire size, .... on and on.
Every so often, I haul yard clippings, cardboard, etc. to the city's recycling place. You drive on a scale on the way in and out. With all I have done, I added about 350 lbs to the Roxor (assuming 3035 lbs was stock): winch, 33" tires, spare tire, 1/8 aluminim top, 1/4" aluminium half doors, CJ frame with glass.
See if you can find a scale to weigh your machine (with you, a passenger): if you have farms around (or a mill, beet / potato processing, etc.), there are scales. Gravel pits have a scale. Larger recycling places or scrap yards have scales.