17.5% off MSRP is nothing to sneeze at.
My experience shopping other Volvos the last couple months is that extra cash is available for certain models that have been sitting on the lots for a while. For instance the XC60 will say same except it’s $500, it’s only on certain older XC60s in stock. So possible that 1750$ is same, in which case I’d scan cargurus for older XC90 Inscriptions and see what’s out there, if any are eligible for more cash.
The two SoCal dealers I’ve found most straightforward are Culver City (Tony!) and Escondido.
only thing you didnt mention was buy-rate residual and mf - did you plug their numbers into calculator to see what markup they had? Just on the xc90?