Hello Clutch_shift_accelerate, so far what have you done for your new ride ?
What are the reason for you to want to seek for the mentioned upgrades ?
To be very honest, the R3 Neo RS version is really good on its own.
But if we (2013 r3 owner) were to spend money on the original R3 parts for upgrades I think it is not worth it as you can see their pricing is on the high side. With almost the same amount of money or less, I believe you can find a lot reasonable items.
Since you're new to modding cars, maybe you should get to know more taikor here and get more information before you do anything to your sweet ride =)