PAS is very rare on a 300 series, but the steering I don't find that heavy tbh.
300s came in saloon 4 door and hatchback 3/5 door versions and your budget is sensible so you should be alright.
I have noticed most 300s seem to be around the kent/london area and up north so you may have to be prepared to travel.
Good choice in Volvo and especially in saloon form, the more loon love the better IMO
