How many miles are on your '00?
If over 55K miles this SL isn't for you for its accumulated mileage,
plus your usual driving will put too many miles on this SL, IMHO.
But if your '00 car has but say, 35K miles then this somewhat high
mileage SL may be OK, because you won't add that many miles to it.
My observation is that SLs seem to be lower mileage cars (vs. sedans),
perhaps because they're so impractical, IMHO, that they don't get high
mileage use - like a trip half way 'cross country.
Finally, forget about it if you have to ask about the cost, otherwise
you'll hate the car whenever a significant repair arises. Remember, your
current car was under warranty, this one won't be.