Setflyn41

So I just got a steal on a 2004 Mazda RX8 grand touring 6 speed manual. My dad works at a car lot and sometimes get cars that they let the employees buy at cost and I got this one for 200 bucks. It had some kind of filter stuck to the bottom of the car and they thought it was apart of the car and they were just going to junk it because it didn't run. Once I got it home and lifted it up it turns out the guy just hit something on the road and it was a filter to a concrete chainsaw, only other thing was the engine was flooded so I got it unflooded after about a half an hour of trying and it started and as I was letting it run a bunch of coolant leaked out from the radiator where that piece had gotten stuck. So now I need a new radiator which I can do myself but it might be a little more work than I want to do. Basically I already have a 2007 dodge charger sxt 3.5 with 179000 miles and I like it ok but after driving this rx8 I think I would rather have it but I don't know much about how dependable they are. It has 134000 miles and I have already got an offer of 3000 without fixing it so I'm wondering should I sell my charger and keep the mazda or would the charger be better to keep
Thanks for the input sorry for the book