Looks like they finally are for sale. Might be a good fit for an inverter that has a low max voltage, but pretty high amps.
https://santansolar.com/product/new-solarever-410w-solar-panel/
Maximum Voltage (VMP): 31.35 V
Maximum Power Current (IMP): 13.08 A
Open Circuit Voltage (VOC): 37.12 V...