I did the conversion in the UK. You will also have to sit all 14 exams, and max three sittings. All exams are offered in the same sitting but it is a lot of testing. I have seen people do it before. Since you hold an ATPL in another country, you can self certify for the exams. You will also have to do a flight test, which can be done in the sim on the type that you are currently flying if you have 500 hours on type. Sittings for exams are typically held once a month, and they have different locations. The medical exam has to be done at Gatwick for the initial, but they accept initial class 1 medical exams from other EASA countries with some paperwork and a fee.