308 distributor help needed

Please help, I have a 308 gts carb 1979, that needs its distributor sensors and points changing, as they are stuffed. It’s a single Magnetti Marelli SM805A distributor.

1) The first problem i have is getting to the gubbins, i have removed dist cap and I’m faced with a plate covering in inner workings of the distributor, i have removed 3 retaining screws and 2 screws holding the sensors. I have tried pulling it straight out, although there is a little movement it won't budge. The plate will turn inside the distributor but still won't come out.

2) Does anybody know where i can get a detailed components drawing and tech manual for the Magnetti Marelli SM805A distributor? I have a 308 workshop manual but its not detailed in it.

3) Going to sound dumb now, I have found the appropriate ignition drawing and parts list, but there are no condensers listed, is the ignition sensor the condenser? Or are the condensers part of or on the coils?

Cheers

Timmo
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I have also posted this thread under "308" specific models, i have received advise and found it very useful, so if you have same prob look at my replys there.
Happy driving
Cheers
Timmo