If you decide not to mount the winch you need not install the Capstan assy and parts B18 and B1 from section 8, part B74 from section 9, the front fairlead starting with part D5 in section 14, parts B59, B62 and B58 from section 16, and parts B2 and B63 from section 17.
And if you decide to not install the winch, you would need to replicate the mount for the front fairlead...
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and make a plate to replace the pulley that goes under the winch hole.
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cheers