What to do with ubitx ver<5 boards? V-U operation?

iz oos
 

Some seem to replace the older ubitx boards with ver 5. I too am thinking about that. But then what to do with the older boards? One idea that comes to mind is to use the ubitx up to the PA and drive the cheap V-U (50-144-432mhz) transverters one may find on ebay. Has anyone done this?

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