Just to add to the above advice, which you should follow... ...twisting or paralleling will pretty much half the resistance of the coil, wrap for wrap. With thinner gauges, this is often necessary to get down to a lower resistance. The 24g you have there is ready for low-res builds right off of spool. It's generally best suited to building UNDER .5 ohms. It's hard to go much higher than .5 with it because your wrap count starts getting into the double digits and it heats up verrry slowly. You could always do a single macro coil, which would be 6 wraps around a 3mm for ~.5.
Ribbon wire is a little different, though if you can mount two strands in your posts, should preform nicely as a dual parallel in the .5-.8 range. You'll have to learn by doing on that one, though. The idea is to take two strands, pinch them straight with your fingers and wrap a coil with the two strands laid out on top of one another.