Hello Toshiaki and everybody,
                       Ties listed several questions, so we (Keisuke, Jan, a few people and I) will just add one: we would like to understand the ILD strategy for accessing the inner detectors (inside the TPC inner fieldcage) for maintance.  We will need to know that to get a better estimate of the weight load on the inner fieldcage and then on the implications...
                 
Cheers,
                          Ron