A colleague has offered his 2000 S70 to me for the scrap price of $250. Base NA, 200K+ miles, with transmission issues (he says "solenoid codes" and that it drives, but sluggish).

I'm trying to decide if I want to bother with it. First year for the AW55-50 5-speed transmission which we know is infamous for it's issues with software, valve body/solenoids and the B4 servo cover upgrade. The upside is that they're all well-documented and parts now relatively cheap. What I haven't been able to quantify though is the risk that the failed solenoids or valve body have irreparably compromised the rest of the unit. Anyone care to hypothesize on the severity of the issue? I figure i'm in for a set of solenoids, maybe a rebuilt valve body at least. Maybe a computer reset and adaptation?

He replaced the P-N-P shifter switch a few months ago which he claims solved the issue (perhaps a different one) temporarily, but now with the solenoid codes he's done messing with it. Overall car cosmetically imperfect but he's put a lot of work into over the past 2 years so should be a reliable driver otherwise.

Thank you,
Will

To clarify: Based on my interneting, while the 5-speed automatic AW55-50 is best known for problems in the 2001+ P2 cars (S60/V70 etc) It was first offered in the 2000 S70 Base while the other (turbocharged) S/V70 models continued on with the ol'reliable 4 speed.
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XC60 / Odyssey