6lb braid, 4lb fluorocarbon leader.
1-2, 1-3 and 2-4kg rod with a whippy tip but enough backbone are perfect for bream fishing.
For the reel pick a 1000-2500 size as that is all you will need to fish for them effectively.
In regards to lures, i've had success on zman 2" grubz and 2.5" grubz in watermelon red, gudgeon, midnight oil, bloodworm and motor oil. The slim swimz you have will work well too in 3" but cut them down a centimeter or so, this retains the fatter profile of the lure whilst becoming a smaller sized plastic. 2.5" slim swimz are also great for this. Squidgy 65mm wriggler in bloodworm work super well along with red rum, all these lures I have done quite well with.
With jigheads get size 2 jigheads for 2.5" grubz as they fit perfectly and don't catch the tail as much as size 1's do however either side will work well on grubz and slim swimz in the 2.5" size. Use size 4 jigheads for the 2" grubz and squidgy wriggler 65mm ones. With weights 1/8th will work however if you want to catch more fish I suggest you get sizes from 1/12th to 1/20th or even lighter if you can get them. Hidden weights in size 1 work well for the 2.5" grubz and size 2's or 4's for the 2" try get around that 1/20th size.
If you have the coin invest in some crankbaits! Prolure cranks, Atomics and all sorts of other crankbaits will work a treat!
With scents for bream specifically you can't go past pro cure shrimp or saltwater yabby/nipper S factor also works a treat. Use scent sparingly, it goes fast than you think.
When fishing for bream your retrieves can vary on the day from a singular hop, to the old trusty double hop, and a quick flicky retrieve that brings the lure up off the bottom and coupled with the light jighead it waffs back down to the bottom. Don't be afraid to try different things and see what makes them bite on said day. With bream retrieves try to keep it as slow as you possibly can. Hop every 10 seconds or so and WATCH YOUR LINE you may not feel the bite but you can see pickups, bites and all sorts of useful info when watching your braid. Also fish around STRUCTURE, this can be snags such as fallen tree branches, steep banks, rocks, boulders, drop offs, slower moving water all sorts of things. Try to assess the area you are fishing and fish it accordingly.
With leader any 4lb will work but I prefer the berkley vanish brand and sunline fc rock. Both awesome leaders with awesome abrasion resistant if you get shredded into a snag by a bream or hook up to a flatty.
Hope this helps somewhat and points you in the right direction regarding bream! They are a tricky fish to target but once you learn the intricacies of these fish I am sure you will smash them!
Good luck mate let me know how you go.