You very likely do not want or need MagneRide if you are not tracking or serious canyon carving. MagneRide should be way stiffer than the base suspension. PP without MagneRide should be fine for most people who don't want or care about the extra performance MagneRide brings.
We still haven't seen the PP2 19" with MR option in the wild AFAIK. I've only seen it in this thread. Somebody in another thread said they spotted 2018 mules with square 305's (but no pictures). Hmm
Yes apparently there will tons of used ones available.
I actually think it won't look too bad painted black. But at that point it might make more sense to get the GT350 spoiler.
Back to horsepower for a minute, this ought to be the benchmark.
From Motortrend:
2018 Lexus LC 500. quad-cam 5.0-liter V-8, 471 horsepower at 7,100 rpm.
multimode exhaust. low-mass reciprocating parts such as forged connecting rods and titanium intake and exhaust valves. The cylinder...
The analogy to what a turbo can do is not applicable with NA. With everything now fairly optimized with the 2018 5.0 NA, in order to get more than 470hp you simply have to rev higher. Any any higher gets you into Voodoo territory.