You need standard memory for the system to function.
Optane memory is for storage acceleration, so it isn't required and will likely not benefit your workloads. I would pick 16-32GB of DDR4 2666 or XMP 3200, and then also go with a 512-1TB NVME ssd. For the RTX 2060 there are a few models but...
Is this affecting functionality or just something that bothers you aesthetically? You may have to completely remove the cage by drilling out rivets and such to get it out to flatten the bends.
EK-Velocity NIckel+Acetal with all mounting hardware.
EK-CoolStream XE 360
EK-Coolstream PE 120
EK-XRES 140 Revo D5 PWM
10x EK 3/8 id 5/8 od fittings for soft tubing.
Assorted splitters and adapters.
Lots of fittings.
Whole lot $250 shipped. OBO
Used EK Watercooling equipment, looking to sell as a bulk deal but can part out if necessary.
EK-Velocity NIckel+Acetal with all mounting hardware.
EK-CoolStream XE 360
EK-Coolstream PE 120
EK-XRES 140 Revo D5 PWM
10x EK 3/8 id 5/8 od fittings for soft tubing.
Assorted splitters and...