Part-1&2 = Get RTR(A) for lifetime
Part-1 = Get RTR(C) on you foreign FRTOL for max validity of your FRTOL.
No Part 1&2 = Gets you RTR(P) on basis of FRTOL+CPL( Commonwealth Country CPL ).Validity depends on the license which expires first.
Direct Conversion of Canadian FRTOL + Canadian CPL - Validity will depend on WPC rules( Last i heard they are only issuing 5 year RTR-C not 20 year RTR-C )
You will need 30 hours in last 36 months for Direct conversion or Permit.