Wow! Comparing a 745T to a V70NA is like aples and oranges. The NA doesn't have much get up and go, there is no power surge, but it does get around 30mpg on the highway.
Because of the electronic throttle introduced in 1999, I would look for a 1998 or a 2002 V70.
Of course the V70 is harder to work on with less room in the engine compartment, but there are so many new features that were not available when the 745 was built. The V70 is a lot safer, but a little smaller in the important space box in the rear. An 80inch sofa will stick out a lot :)

When buying a Volvo, it is not the miles on the Odo that count, but the service records. And the ability to trust the seller.

Klaus
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The 164 has a new home, all I am left with are a 95 854T and a 98 V70R :)