Got the DCA2000 pump yesterday. Was a perfect drop-in fit. I did have to use a little Teflon tape to create a better fit for my existing air intake into the venturi. It did ship with a replacement air intake, tube and silencer, but the stock one was more robust so I opted to adapt it.
So far it’s working OK, a little erratic which I suspect will even out once it breaks in and gets the biofilm.
Thanks all for the recommendation!