Champion makes an affordable 3 or 4 core aluminum radiator for not too much of money.You are right, the 4 or 5 degrees I measured was relative to the ground, not to the frame. Not the correct way to measure.
I will check the angle of the frame too. What I did is I matched the output flange of the transfer case to the flange of the rear differential.
I'll do those measurements and post them.
If it does not work out I could convert to 2WD (source a HF1A or install a part time kit) or use custom CV driveshafts and retain the AWD.
Since the AC compressor is already on the 1UZ I'm planning on adding AC like you said. At the moment I have to figure out if I'm going to use the original radiator and if that has enough cooling capacity. If not what to upgrade to? When I've got a radiator I will also start searching for a condenser and make some brackets.
Here is a forum thread about baffles to help. Their are universal kits on ebay.Not Yet @White Stripe , I'm no expert on oil pans but I will be installing one on the slope at the front so that not all the oil will flow forwards and up when I brake.
Do you have a suggenstion for more baffles?
I still have to figure out how I will connect the dipstick (will be simple, little piece of bend tube).
Also the oil level sensor from the Lexus LS400 is broken, they are expensive and the ECU does not require that sensor, I might just leave that out.