Purchase advice C30

Hello dear Volvo community! Actually I only write here in the VW T1,T2,T3 corner. But since I’m getting tired of the bus and it should only be taken out to meetings or similar events, I’m looking for a new everyday car and need your help. I’m looking for a C30, diesel, preferably 136hp (or another useful engine) , old model. Does someone happen to sell one here? Otherwise I would need your help, what you can buy, what you have to pay attention to, what are so common quirks with the box etc. Important here would be so rough numbers such as taxes, insurance, costs of the parts at a workshop, generally workshop prices and so on your experience. I like to see cars that are something. How much would you have to look at if you don’t want to have a husked box running with forever much? Thank you already for your help! The competition would be a BMW 320D E46. However, I’m scared by the maintenance toilets here and besides that everyone ;-).