1.0uF is fine for an output cap. We use that value in the Eros, which has the same output circuit.
The filament power supply uses a 1.2 ohm, 3 watt resistor, and the RRSF in the high voltage supply uses two 10-ohm wirewound resistors, nominally 3 watts.
Depending on the particular tubes you use, the 1.2 ohm resistor might be changed to optimize the heater voltage, which should be in the range 5.7 to 6.0 volts. You might chect the voltage before you order parts to see if you want to make a change.
The 10 ohm resistors rely on the tiny inductance of a wirewound. Do NOT get non-inductive wirewounds for this application!