Great car choice and welcome. I would say be patient and get the spec that suits your needs. I was in a similar position, the RCF had no competition for me and I love the blue so it was my first choice. I would happily have taken other colours if the car was right though. Mine has a couple more owners than some would like, but owners is not relevant to me - as long as it’s straight, been looked after and has a proper service history, it doesn’t really matter. I was lucky to find one with very low mileage, 18 months Lexus warranty remaining and with a TVD, but mileage is not an issue with these cars if it has been looked after.
in sum, get the one that fits your preferred spec and if it’s not there, wait. Good luck 👍