It’s easy enough to calculate your four corners if you eventually do find a scale. You weigh the entire vehicle by first driving the front wheels onto the scale. Note the weight.
Then pull ahead until all wheels are on the platform. Note the weight then go ahead till fronts are off. note the weight!
drive around the scale and this time approach with the right hand wheels off the platform weigh the front left ...Front and Rear ... then left rear only! Noting the weights !
Subtract the left only from the total weights ,and there you have it!
In BC they leave the scales on 24/7 even when they are closed!