Interesting input. Thank you all.
Have gone with slotting the original holes and using the original toyota bolts.
The whiteline camber bolts could only be torqued to 70 nm but rely on a serrated washer with positive lock tab to stop any movement. The original toyota bolts torque specs are 220+ nm and rely on just clamp.
Was thinking of replacing them with 12.9 cap screws and washers to clamp more area but they have similar torque settings and would end up sharing the torsional clamp over a bigger surface area so a worse option than oem bolts :/
For now will run as is and modify/improve at a later date if needs be.
Got around to torquing all the subframe and suspension bolts.
Made some duct work for the radiator and oil cooler and mounted the intercooler. I have fitted the oil coolers where they are as radiator is a twin pass version so only hotter side of the radiator is being cooled with warmer air from oil coolers than the rest of the radiators. Duct work works so well. The air is sucked hard all the way from the front of theintercooler.
Some pics missing of the lower cooler brackets and the duct/rad divider but you get the idea.
Also changed turbo water feed and return lines from an4 to an6.
Fuel cell is in and top plate and inspectio. Plate is made too but still need to make a collector box and add foam....
Note duct on side of rad to direct air from intercooler
need to shave more metal here for oil cooler lines.