Just curating some interesting sites in relation:
Here is a link to the conference back in 2008 which resulted in the publication of his collected works.
Here is a basic bio - of course it's the same picture as 'Mullā Ṣadrā'.
Here is another bio in the context of his exegesis by Sayyid Muḥammad ʿAlī Ayāzī who has also penned a useful work on tafsīr literature.
Here is a video of what seems to be a radio programme.
Here is a link to the text of Fayżnāma - which was printed along with the collected works a few years ago by the Madrasa-ye ʿĀlī-ye Muṭahharī - on the Noor Library site to which you need to register to access. The Noor chaps also have a CD of his works here.
Here is an interesting exchange with the Neoplatonist Qāḍī Saʿīd Qummī [d. 1696] who may have been a student - but was certainly a student of Fayyāż Lāhījī, his ham-rīsh.
Here is a link to his poetry.