Yeah I also think Magnums were a great looking car, mine was an 05 R/T, dropped the transmission at 160km, and I was quoted 6k for a rebuild. I put a used one in and it was $1800.00. I had already done front end, brakes and most of the sensors by then.
Mine was an 06 so very little difference. My buddy still has his 05 and the same colour as mine. Did you know the tranny's are Mercedes AMG's or that is what I was told and believe to be true. No wonder they are so expensive