Sorry, I missed the broken cam. Then a used head and cam may be the best way to go. If you got a new cam, you would need new rockers as well.
But I would really be worried about why the cam broke. That is not exactly a common failure.
I have a bunch of gaskets and parts left over that you can have once you get into it.
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe