One thing to remember, is If you want the FAA to recognise your CPL you will need to register with TSA at their Alien flight student Program Website
https://www.flightschoolcandidates.gov ..... which includes having your fingerprints verified by an approved organisation. This can take up to 90 days, so its best to get things rolling before you leave.
The other option is to start from ppl level, still using your exsisting hours, should take about 10 hours to cpl level...( Min 3 hours Ppl instr, and Min 3 hrs CPL Instr + 1.5 flight test x2) . If you already have time on type and all the prerequisites its a way to get around the 90 day wait.
As for study material. Dauntless software, available online at
http://www.dauntless-soft.com is the very best, for around USD$40.00 you get every thing you need including tutorials, also practice tests and sign off for pink slips prior to sitting exams. Laid out in the same format as the exams
hope this helps