You can do it virtually all through the Uk system in bits.
Three week PPL in the states.
distance learning ground school.
You would need three weeks twice to do the residential bit then exams.
Only when you got up to IR would you have to jack the job in.
I held down a 6 days a week 10 hours a day job up until I started the CPL/IR. From day one to last day of my FI course it was 14 months. And I worked for 10 months of that. With 6 weeks off which was why I was doing 6 days a week instead of 5 to build up the weeks off.