You can search out truck scales in your area.
Think outside the box.
Maybe a local moving company or the port of Oakland.
Be aware that most scales will charge you and most are not setup to weigh each corner but it depends on how busy they may be at the time.
The actual weight per corner is good for rearranging your goods to equal out the weight in your coach. The weight per axle is an indicator of how your coach is carrying the load.
All tires on each axle should be inflated to the same pressure. I.E. You wouldn't want to inflate the left front to 65 and the right front to 85 just because of the corner weights you may have gotten. This could cause a driveability issue. Read " pull to one side".