So if you want to do a diy wireless jobbie you could do it -reasonably- for $250-$300 with 1760lbs available for each corner (I have a C-Body lols)
$10-25 Arduino board depending on options
$10 4x hx711 loadcell controller boards
$5 wifi module
$180 16x 440lb load cells or smaller/cheaper depending upon intended use
$$ ??? wiring and steel to make the platforms
some time

The Ardiuno boards are awesome, anything you can make the board do, you can monitor or control from a phone/tablet/pc - there are easy to use apps to design screens and a lot of support available - Im looking at tablet dashboard set ups atm and im pretty certain it wouldn't take much to use one for a 518 trans and actually have some logic working behind it