Please don't take this the wrong way. Those wheels...don't do anything for me

. Way too big for the car. Please, please, please reconsider!!!
To me old-school cars like the RX4 look good with up to an 18" wheel. Smaller 16's/17's that don't fit newer cars actually work quite well on old-school cars like this. I never have liked gold wheels on cars, even Ferraris/Lamborghinis look dreadful w/gold wheels
I did a cursory look at some custom rims I have on my RX4 (no pics), Aoshima 19's and 20's are a good size for this car in this scale. They're a lot nicer/more modern than the stock 13/14" wheels, but nowhere near as obscenely out of scale/out of character as the ones you show. I tried a set of Jada 1/24 bling rims on my RX4 and nearly

To make that "work" you have to raise the car up like a Donk (the most horrid cartoon trend in "custom" cars in my lifetime). 26" rims in 1/24 are still over 20" in 1/20, and that's just too big for a '70's era car w/small wheel openings. Not to mention the surgery you'll have to do to the chassis/suspension to fit the wheels.
Pegasus makes a lot of 18's and they make 23" sleeves for them, they also fit the RX4. Not sure if you have access to that kind of stuff down under, but they're a lot more suitable as well.