Just a point, you can do them alot quicker than quoted. The us ppl folk do them in under 3 weeks for the whole lot.
2 hours a night per subject for 2 weeks is more than required for the ATPL modular courses.
The main thing is to go back to the books occasionaly and keep abreast of any changes.. .Personally performance, airlaw, principles of flight and nav proc are worth rereading whenever learning something new or out of the saddle for a while. Sometimes the penny drops on certain things after its been demonstrated to you and a higher understanding is achieved.
MJ
MJ