2016 Lexus RX 350 Purchase - Taking over a lease to purchase is ideal?

Hello,

Got someone who wants to buy a used 2016 Lexus RX 350 (2016 is the model refresh update).

All the used cars on cargurus advertise the 2016s with a sale price around 72% RV from the original MSRP.

Can’t seem to find a good deal on a used 2016 RX 350

TLDR;Since the RV on this car is about 54-56% and market rate hovers around 70%, is it better to take over a lease (Swapalease) with the intention to purchase?

That’s retail price…of course it’s gonna be higher than the typical RV.