hi Bala.
about # 7 in your list, it doesn't have to be medical. any type will do the job.
jokes aside, i'm sure our friend Feelyx will be happy to get your old IMSB if you put it in a ziplock bag right after you remove it.
Who has done an IMS change? - Pelican Parts Technical BBS
good luck man, and let me know when you done. i will be happy buy the LN tools from you.