Reciting Aayat-e-karima 125000 times

Q: I have started reciting Aayat-e-karima. Insha-Allah the intention is to complete 125000 times. I have two questions. 1) Since I have started the tazbeeh, can I continue in menses? 2) Can someone else also help me finish and complete the the tazbih. I have done most of the recitation but my cousin is helping me to complete only a few tazbeehs (8300) is that ok? Now only last 5000 are left.

Making verbal niyyah before salaah

Q: My question is related to making the verbal niyyah before salah. Is it a bida'h? I have gone through a lot of articles regarding this matter. Some people say that it is bida'h. Some say that it is okay to say it verbally whereas some say that it is not from the sunnah, that our prophet (Sallallahu Alayhi Wasallam) did not use to do this. He would rather make intention in the heart and start the salaah with Allah Akbar. I am confused with it and don't want to fall in doing something wrong. So if you can guide me to the right path Insha Allah. I also want to know if the intention is to be made in the heart only then what are things that should be said in the heart.

Performing the Sunnats before the Azaan is called out

Q: If the awwal waqt for a salaah has come in e.g. asr, but the azaan has not yet gone in the masjid. If a person enters the masjid, will it be disliked at all that he reads his Sunnats although the azaan has not gone yet? If it is disliked, then would this be the case in a musallah that only gives 10 minutes between azan and salah, and a person would like to perform lengthy Sunnats and start before the azaan?