The DOT4 fluid is fine for both clutch and braking systems.
I'm afraid that I'm unfamiliar with both the Motul and Valvoline oils but
they are both large oil companies that I'm sure produce quality oils.
Castrol Classic XL 20W50 is a perfectly good choice for the AC engine.
Also, the Castrol Classic 30W oil will be fine for the gearbox.
EP90 oil is correct for the differential but don't overfill it.
The handbook gives the capacity of 3 pints (1.7 liters).
For the cooling system an antifreeze/water mix of at least 30/70 percent will
work unless your planning a trip to Alaska this winter.
Waterless coolants such as Evans Classic cool are also an option but the cooling
system will need to be completely drained of all water based coolant, before refilling
with waterless coolant. AEX 31 in Sweden has been running his car on Evans for the
last couple of years without any issues.
Regards, Luke.