Seller says the car is E320 Sport but the car is not a Sportline as the suspension is way too high. The manual gearbox on these cars was not popular for a reason. You still have the fly off handbrake operated by the pull handle in the drivers footwell. Hill starts are a nightmare.
From what I can see the car has no extras whatsoever and there appears to be no details of any service history.
I really don't understand why people have problems with hill starts. Simply find the biting point on the clutch and release the dash handle then pull away. Just the same as you would with a normal central handbrake.