Just lace your own it's not hard to do just takes patience. I have a stand and dial indicator now but I used to do it with 2 vertical 2X4s with V notches cut in the top nailed to the sides of a 2X8 and a hole drilled in each 2X4 with nails stuck through against the sides of the rim if either nail moved it wasn't straight!

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!