hi forum...I'm visiting here from the diesel forum...I currently have a 81 300D. I'm looking at a 74 450SL, no rust, under 200k, so-so interior...The selling party wants $8k for it. My question is: As I know nothing about the SL's..is there anything obvious that I should look for on this car?..Will this car cost more to maintain than my 300D? Is there a faq area of this forum that would probally answer most?

thanks in advance
sean