@ Fouad, I hadn't meant to be that picky ...................but I have been thru some of these exercises already. I was amazed my NPP weighed 2225 kg despite being an open daala, where as LC100 weighs only a little more at 2360kg. And 80 is somewhat slimmer than 100, so that is what I was roughly translating earlier.
Anyway a quick search on the net supports my suspicion about the weight. The width of 80series is a bit more, but weights are very close!
Also while looking for various options to improve the power of NPP, I actually considered a bolt on turbo kit, but it proved to be cost prohibitive. So I thought I should warn you.
Reading thru your post, 30-40% safe increase in power for a 135hp 1hz mean max 190hp. Why not than opt for 1HD-FTE with 200+ horses anyway, hopefully with toyota factory reliability. I recently had a chance to drive a Chipped 1HD-FTE LC100 producing maybe 240+ horses and it was just lovely!
For 1FZ, maybe you can convince one of the IJCians to give you the superchargers that has been acquired but not used yet! 
In one of your earlier posts you mentioned, you were hoping that just the looks of Phantom would get people drooling, I am sure it will.......................but having personally seen monster trucks / bigfoot from very close......................yes the huge tyres n suspension n all leaves you awestruck, but when the monsters were started and revved up BBBBBBBBBBBBRRRRRRRRRRRRRRRRRR................it literally send down a most awesome shiver down your spine...............so yes an awesome sounding engine / exhaust combo should be a must for phantom!
Hopefully, you won't mind all of us getting a dream vehicle built thru your wallet!
