Why not just buy a V50 2.0-litre petrol or a T5?
Here's a V50 2.5 T5 thats within budget:
https://www.autotrader.co.uk/car-det...ords=T5&page=1
Exactly the same as the C30 in terms of interior but with the added practicality of being an estate. In R-Design trim they look very nice.
In terms of bluetooth, models before 2012 could be specced with 'telephone only' bluetooth, but also had USB, ipod and AUX input. So if you're wanting to stream music, provided it has the USB port there will be cheap solutions for doing that on an older model.
You really do need to check what inputs it has in the center console though, as the USB port makes a big difference to what you can do.