Replacing Quad2000 Air Compressor Control

I need help in product selection to replace obsolete QUAD2000 Compressor control with a suitable controller for TA-18 Cameron Compressors. Presently we are considering Maestro Universal, Maestro Legend and BAY Controller. We are told that Maestro Legend and Bay Controller is the same thing. Only when it is supplied by Cameron it is marketed as Maestro Legend. Can anybody help? also please share your experience if you've done similar retrofit

....Thanks
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