from what i understand or the system:
you can start the CPL on 150 hours total time only as i did the p1 done can be done at a later date.
i have taken cross country as flying from port to port- land aways insted if just in the circut etc..
the application should be made as soon as possable. however if like me your going through everything like CPL, ME, IR then providing you do them one after the other you can apply for them after finishing it all as its cheaper. reason for this is otherwise your ATPLS may expire and you do not want to do them again. cant remember the exact time frame though. there MAY also be a time limit on how long you can wait before having your CPL issued- not sure about that as well.
if im wrong anyone out there pls correct!