why do you want to get car completely re sprayed anyway?
be probably be better part exchanging to prefered colour car.
if you want re spray on car, it cost more than expected, it may need new bits like roof moudings, door trims & seals etc...... as some parts dont go back on once is taken off, not sure on Lexus/Toyota cars tho. but my old car(96 mazda 323F) roof moulding was taken off as roof was re sprayed & rubber windscreen seal, roof mouldings had to be replaced as it didnt go back on properly. mazda parts are v. expensive so lexus parts, work it out!
you can leave some parts on while being re sprayed, they use masking tape to cover bit up but it leaves over spray & looks crap (most bodyshops & car dealers do this unless you tell them but charge you more as they call in specialist autoglass as things like glass is sometimes bonded in & some body shops cant remove it)& in hot weathers especially, rubber parts sometimes expand causing paintwork to flake, i seen this happen many times.
i know from past experience you have to think & do everything correctly.
also car de value if re sprayed in different colour, if they know it has ne way.
just my 2 pennies worth
cheers