[C320-list] Replace Main Halyard

[mikepxx at adelphia.net]

I need to replace my main halyard and I have a few questions. 
 
1) what's the best way to do this? Can I do it without going up the mast? 
2) type and size (length and diameter) of replacement? 
 
My hull number is 734 and my sailing consists of coastal cruising. 
 
Thanks, 
Mike P 
 
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