Vintage winch servicing and copper coat repairs

The winter jobs are drawing to their close and its time to get the copper coat antifoul sorted out for the coming season.. Some patches had come loose and basically fallen off, but there were a number of pinholes too which were a bit more worrying as stuff was weeping out form them... so there must have bee water getting in too which no doubt accounts for the slight blistering seen on the underside... might have to consider epoxying the whole hull... not this year though, it's nearly time to go sailing! Thos old tufnol winches are still working well, but could do with some new (better?) ratchet pawls, so if you know of any do let me know! Sailing a 1970 Contessa 26