EASA Conversion
First of all, You are not suppossed to get class 1 medical in the state that you wanna make your conversion. You may get class 1 in any EASA member state.
2. ATPL Theory: First You must get EASA Atpl theory course (650 hrs) to take official exams. (You may get your course and exams in any EASA member state)
3 and 4: First You must get approved conversion refresher training from an EASA ATO then You can go for skill test.
5. MCC is optional additional course anyway