What area do you live in? If in a rural area, you can generally tow it across a scales at a "co-op" farm / plant food / feed / grain elevator / store for no cost since it's a curiosity thing and not to sell by. The one near me even leaves their digital display pointed towards the window so you can check it out even if they're closed. If you live near a city, check with a truck stop located near an interstate, may cost a little but at least it would answer your question.
We never really grow up, we only learn how to act in public. '12 Weakender TD (homebilt)(43 States & almost 35k miles) '67 Shasta Compact '67 Bee Line Wasp