We usually just used a big plastic handreel with about 100 ft of cheap
about 6mm like used on crab pots, a good quility Black game
fishing swivel with ball bearings cost abot $6-00 each but worth it if using a lot, then about 6 ft of piano wire. attached to a cheaper 60kg swivel we'd have a large torpedo sinker on this wire and then another 6ft of piano wire another 60kg swivel followed by a nice shiny Halco Barra spoon. Try to use Black coloured swivels as the fish will go after shiny ones.
The important part was attaching it to the boat
. We used old bicycle inner tubes [ free at bike shop] fed through the reel and back through itself, and then back to and through a horn cleat. This takes the shock out of your gear
and let's most fish have a run without breaking off. We never had a tube break and man , can they stretch when you get a good un' on the end.
We always had this out as soon as we started to sail and in some places had a fish on before you'd get to the end of the line. We were rarely without a feed while cruising.
When a fish jumped on we'd just tow him aroun for a while until they were worn out and then they were quite easy to deal with.