I agree with markuson.
Invest in the best tint you can get, clay-bar it then keep good polish on the paint, and buy a UVS-100 sunshield (best in the business) to help with heat from the front glass when parked. Also have a look at the top of the radiator and check for a hairline crack forming at the front edge of the flat area with a sticker on top. Many of these have this issue at those miles. If these are at dealers and you catch it now they may be willing to fix it for you, or at least provide a radiator.
Side note: if you want to wade into a s***-storm ask whether you can run RUG in your new LX.
Hint: the manual says not to, but the engine is the same compression ratio as a RUG-drinking LC and doesn't make a significant difference in power to suggest anything different about tuning. BUT, despite users putting hundreds of thousands of RUG miles on their LX without issue, the manual says "premium only".. (I can hear Teckis having a stroke from here)
There's no need to be dismissive of the LX on account of it's a "Lexus", I like to build things and can't blah blah...because that's outright BS. Like what you like. Others may like it differently, even if that might be the newer Lexus maw.
I think you are taking your job as the last defender of AHC/premium gas in LXs a bit too seriously, again.
When I bought my 200-series cruiser only a couple people had put tundra arms on one; no one was talking about it on a LX yet. There weren't good slider options, yet. The available bumper options were even worse than they are now. And while it was reasonable to assume these products would be introduced and improved like every other platform that gains popularity in this industry, I wasn't willing to bet the purchase of a vehicle on it. AND there was the long-arm issue at the time. Or the possibility I'd lift it more than a sensor-lift allows. Or I'd want some ridiculously expensive bypass shocks because I move to the desert.
It's pretty ironic you harp on people about admitting they like what they like, when you are so absolutist on the utter dominance of AHC.
And what if I like less complexity?
All of that said.. I asked about pressures because depending on what toyota did with the lower shock mount location on tundra arms, more pressure may not actually be needed. But, in the event pressures didn't go up, you probably aren't gaining much travel if any. And yes this would apply to cruisers too, with their more traditional coilover shock. However going the other direction, if the shock location stayed the same in relation to the inner pivot point and the arm got 1.5" longer, pressures may be above what is ideal. I'm just asking if this data is available through the CANBUS or other data streams.